{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T10:30:14Z","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","advisory":{"id":"cisco-sa-vlan-dos-27Pur5RT","slug":"cisco-sa-vlan-dos-27pur5rt","vendor":"Cisco","title":"Cisco Catalyst 9000 Series Switches Denial of Service Vulnerability","summary":"A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the control plane of an affected device. This vulnerability is due to improper handling of frames with VLAN tag information. An attacker could exploit this vulnerability by sending crafted frames to an affected device. A successful exploit could allow the attacker to render the control plane of the affected device unresponsive. The device would not be accessible through the console or CLI, and it would not respond to ping requests, SNMP requests, or requests from other control plane protocols. Traffic that is traversing the device through the data plane is not affected. A reload of the device is required to restore control plane services. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT This advisory is part of the September 2024 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2024 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.","severity":"Medium","published_at":"2024-09-25T16:00:00Z","updated_at":"2024-10-04T21:53:25Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT/csaf/cisco-sa-vlan-dos-27Pur5RT.json","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure."},"freshness":{"last_source_refreshed_at":"2026-07-21T05:16:34Z","latest_source_refresh_at":"2026-07-21T05:16:34Z","oldest_source_refresh_at":"2026-07-21T03:00:03Z","all_sources_fresh":true,"sources":[{"source":"cisco_advisories","label":"Cisco advisories","last_success_at":"2026-07-21T03:00:03Z","stale":false},{"source":"cisco_csaf","label":"Cisco CSAF","last_success_at":"2026-07-21T05:14:24Z","stale":false},{"source":"nvd_cves","label":"NVD CVEs","last_success_at":"2026-07-21T05:16:30Z","stale":false},{"source":"cisa_kev","label":"CISA KEV","last_success_at":"2026-07-21T05:16:31Z","stale":false},{"source":"first_epss","label":"EPSS","last_success_at":"2026-07-21T05:16:34Z","stale":false}]},"summary":{"cve_count":1,"visible_product_count":4,"public_evidence_count":4,"kev_count":0,"highest_epss":0.00257},"cves":[{"id":"CVE-2024-20434","kev":false,"epss":{"score":0.00257,"percentile":0.17237,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"}}],"public_evidence":[{"product":{"name":"Cisco IOS XE Software","slug":"cisco-ios-xe-software","vendor":"Cisco"},"cve":{"id":"CVE-2024-20434"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T02:18:18Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"16.10.1a; 16.10.1b; 16.10.1e; 16.10.1s; 16.11.1; 16.11.1c; 16.11.1s; 16.11.2; 16.12.1; 16.12.10; 16.12.10a; 16.12.11; 16.12.12; 16.12.13; 16.12.14; 16.12.15; 16.12.1a; 16.12.1c; 16.12.1s; 16.12.1t; 16.12.1z2; 16.12.2; 16.12.2s; 16.12.2t; 16.12.3a; 16.12.3s; 16.12.5a; 16.12.5b; 16.12.6; 16.12.6a; 16.12.7; 16.12.8; 16.12.9; 16.6.1; 16.6.10; 16.6.2; 16.6.3; 16.6.4; 16.6.4a; 16.6.4s; 16.6.5; 16.6.5b; 16.6.6; 16.6.7; 16.6.7a; 16.6.8; 16.6.9; 16.7.1; 16.7.2; 16.7.3; 16.8.1; 16.8.1a; 16.8.1c; 16.8.1s; 16.8.2; 16.8.3; 16.9.1a; 16.9.1s; 16.9.2s; 16.9.3s; 16.9.5; 16.9.6; 16.9.7; 16.9.8; 16.9.8a; 16.9.8b; 17.1.1; 17.1.1s; 17.1.1t; 17.1.2; 17.1.3; 17.10.1; 17.10.1a; 17.10.1b; 17.11.1; 17.11.1a; 17.11.99SW; 17.12.1; 17.12.1a; 17.12.1w; 17.12.1x; 17.12.1y; 17.12.1z; 17.12.1z1; 17.12.1z2; 17.12.1z3; 17.12.2; 17.12.2a; 17.12.3; 17.12.3a; 17.13.1; 17.13.1a; 17.14.1; 17.14.1a; 17.2.1; 17.2.1a; 17.2.1r; 17.2.1v; 17.2.2; 17.2.3; 17.3.1; 17.3.1a; 17.3.2; 17.3.2a; 17.3.3; 17.3.3a; 17.3.4; 17.3.4a; 17.3.4b; 17.3.4c; 17.3.5; 17.3.5a; 17.3.5b; 17.3.6; 17.3.7; 17.3.8; 17.3.8a; 17.4.1; 17.4.1a; 17.4.1b; 17.4.1c; 17.4.2; 17.4.2a; 17.5.1; 17.5.1a; 17.5.1b; 17.5.1c; 17.6.1; 17.6.1a; 17.6.1w; 17.6.1x; 17.6.1y; 17.6.1z; 17.6.1z1; 17.6.2; 17.6.3; 17.6.3a; 17.6.5; 17.6.5a; 17.6.6; 17.6.6a; 17.6.7; 17.7.1; 17.7.1a; 17.7.1b; 17.7.2; 17.8.1; 17.8.1a; 17.9.1; 17.9.1a; 17.9.1w; 17.9.1x; 17.9.1x1; 17.9.1y; 17.9.1y1; 17.9.2; 17.9.2a; 17.9.3; 17.9.3a; 17.9.4; 17.9.4a; 17.9.5; 17.9.5a; 17.9.5b; 17.9.5c; 17.9.5d; 17.9.5e; 17.9.5f","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00257,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-09-25T16:00:00Z","updated_at":"2024-10-04T21:53:25Z","advisory_updated_at":"2024-10-04T21:53:25Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT"},"row_display_order":1},{"product":{"name":"Cisco IOS XE Catalyst SD-WAN","slug":"cisco-ios-xe-catalyst-sd-wan","vendor":"Cisco"},"cve":{"id":"CVE-2024-20434"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T02:18:18Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"16.10.1; 16.10.2; 16.10.3; 16.11.1a; 16.11.1b; 16.12.3; 16.12.4; 16.12.4a; 16.12.5; 16.9.1; 16.9.2; 16.9.3; 16.9.4; 17.6.4","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00257,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-09-25T16:00:00Z","updated_at":"2024-10-04T21:53:25Z","advisory_updated_at":"2024-10-04T21:53:25Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT"},"row_display_order":2},{"product":{"name":"Cisco Catalyst 6800 Series Switches","slug":"cisco-catalyst-6800-series-switches","vendor":"Cisco"},"cve":{"id":"CVE-2024-20434"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T02:18:18Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco IOS XE Software Release 16.10.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1e when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.11.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.10 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.10a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.11 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.12 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.13 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.14 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.15 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1t when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1z2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.2s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.2t when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.3s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.5a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.5b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.6a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.8 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.9 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.10 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.4s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.5b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.7a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.8 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.6.9 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.7.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.7.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.7.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.2s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.3s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.8 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.8a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.8b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.1.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.1.1s when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.1.1t when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.1.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.1.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.10.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.10.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.10.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.11.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.11.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.11.99SW when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1y when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.2a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.13.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.13.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.14.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.14.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.1r when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.1v when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.2.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.2a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.4b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.4c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.5a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.5b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.8 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.8a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.4.2a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.5.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.5.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.5.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.5.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1y when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1z when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.1z1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.5a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.6a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.7.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.7.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.7.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.7.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.8.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.8.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1x1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1y when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.1y1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.2a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5d when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5e when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.5f when installed on Cisco Catalyst 6800 Series Switches","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00257,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-09-25T16:00:00Z","updated_at":"2024-10-04T21:53:25Z","advisory_updated_at":"2024-10-04T21:53:25Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT","row_display_order":3},{"product":{"name":"Cisco Adaptive Security Appliance (ASA) Software","slug":"cisco-adaptive-security-appliance-asa-software","vendor":"Cisco"},"cve":{"id":"CVE-2024-20434"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T02:18:18Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco IOS XE Software Release 16.10.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.1e when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.10.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.1c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.11.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.10 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.10a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.11 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.12 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.13 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.14 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.15 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1t when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.1z2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.2s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.2t when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.3a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.3s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.4a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.5a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.5b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.6 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.6a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.7 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.8 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.12.9 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.10 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.4a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.4s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.5b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.6 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.7 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.7a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.8 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.6.9 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.7.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.7.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.7.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.1c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.8.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.2s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.3s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.6 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.7 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.8 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.8a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 16.9.8b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.1.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.1.1s when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.1.1t when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.1.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.1.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.10.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.10.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.10.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.11.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.11.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.11.99SW when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1w when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1x when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1y when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1z when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1z1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1z2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.1z3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.2a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.12.3a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.13.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.13.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.14.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.14.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.1r when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.1v when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.2.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.2a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.3a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.4a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.4b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.4c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.5a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.5b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.6 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.7 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.8 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.3.8a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.1c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.4.2a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.5.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.5.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.5.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.5.1c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1w when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1x when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1y when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1z when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.1z1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.3a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.5a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.6 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.6a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.6.7 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.7.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.7.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.7.1b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.7.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.8.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.8.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1w when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1x when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1x1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1y when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.1y1 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.2 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.2a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.3 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.3a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.4 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.4a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5 when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5a when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5b when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5c when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5d when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5e when installed on Cisco Adaptive Security Appliance (ASA) Software; Cisco IOS XE Software Release 17.9.5f when installed on Cisco Adaptive Security Appliance (ASA) Software","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00257,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2024-09-25T16:00:00Z","updated_at":"2024-10-04T21:53:25Z","advisory_updated_at":"2024-10-04T21:53:25Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT","row_display_order":4}]}