{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T10:39:18Z","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-bootp-WuBhNBxA","slug":"cisco-sa-bootp-wubhnbxa","vendor":"Cisco","title":"Cisco IOS XE Software for Catalyst 9000 Series Switches DHCP Snooping Denial of Service Vulnerability","summary":"A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause BOOTP packets to be forwarded between VLANs, resulting in a denial of service (DoS) condition.  This vulnerability is due to improper handling of BOOTP packets on Cisco Catalyst 9000 Series Switches. An attacker could exploit this vulnerability by sending BOOTP request packets to an affected device. A successful exploit could allow an attacker to forward BOOTP packets from one VLAN to another, resulting in BOOTP VLAN leakage and potentially leading to high CPU utilization. This makes the device unreachable (either through console or remote management) and unable to forward traffic, resulting in a DoS condition.  Note: This vulnerability can be exploited with either unicast or broadcast BOOTP packets. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA This advisory is part of the March 2026 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: March 2026 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.","severity":"High","published_at":"2026-03-25T16:00:00Z","updated_at":"2026-03-25T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA/csaf/cisco-sa-bootp-WuBhNBxA.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":3,"public_evidence_count":3,"kev_count":0,"highest_epss":0.00354},"cves":[{"id":"CVE-2026-20084","kev":false,"epss":{"score":0.00354,"percentile":0.27737,"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-2026-20084"},"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":"2026-07-20T01:02:23Z","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; 16.10.1c; 16.10.1d; 16.10.1e; 16.10.1f; 16.10.1g; 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; 16.12.1w; 16.12.1x; 16.12.1y; 16.12.1z; 16.12.1z1; 16.12.1z2; 16.12.2; 16.12.2a; 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; 16.6.5a; 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; 16.7.4; 16.8.1; 16.8.1a; 16.8.1d; 16.8.1e; 16.8.1s; 16.8.2; 16.8.3; 16.9.1a; 16.9.1b; 16.9.1c; 16.9.1d; 16.9.1s; 16.9.2a; 16.9.2s; 16.9.3a; 16.9.3h; 16.9.3s; 16.9.4c; 16.9.5; 16.9.5f; 16.9.6; 16.9.7; 16.9.8; 16.9.8a; 16.9.8b; 17.1.1; 17.1.1a; 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; 17.12.1; 17.12.1a; 17.12.1w; 17.12.1x; 17.12.1y; 17.12.1z; 17.12.1z1; 17.12.1z2; 17.12.1z3; 17.12.1z4; 17.12.1z5; 17.12.1z6; 17.12.2; 17.12.2a; 17.12.3; 17.12.3a; 17.12.4; 17.12.4a; 17.12.4b; 17.12.5; 17.12.5a; 17.12.5b; 17.12.5c; 17.12.5d; 17.13.1; 17.13.1a; 17.14.1; 17.14.1a; 17.15.1; 17.15.1a; 17.15.1b; 17.15.1w; 17.15.1x; 17.15.1y; 17.15.1z; 17.15.2; 17.15.2a; 17.15.2b; 17.15.2c; 17.15.3; 17.15.3a; 17.15.3b; 17.15.4; 17.15.4a; 17.15.4b; 17.15.4c; 17.15.4d; 17.15.4s1; 17.16.1; 17.16.1a; 17.17.1; 17.18.1; 17.18.1a; 17.18.1w; 17.18.1x; 17.18.1y; 17.2.1; 17.2.1a; 17.2.1r; 17.2.1v; 17.2.2; 17.2.3; 17.3.1; 17.3.1a; 17.3.1w; 17.3.1x; 17.3.1z; 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; 17.6.8; 17.6.8a; 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; 17.9.6; 17.9.6a; 17.9.6b; 17.9.7; 17.9.7a; 17.9.7b; 17.9.8","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":0.00354,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2026-03-25T16:00:00Z","updated_at":"2026-03-25T16:00:00Z","advisory_updated_at":"2026-03-25T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA"},"row_display_order":1},{"product":{"name":"Cisco IOS XE Catalyst SD-WAN","slug":"cisco-ios-xe-catalyst-sd-wan","vendor":"Cisco"},"cve":{"id":"CVE-2026-20084"},"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":"2026-07-20T01:02:23Z","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":0.00354,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2026-03-25T16:00:00Z","updated_at":"2026-03-25T16:00:00Z","advisory_updated_at":"2026-03-25T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA"},"row_display_order":2},{"product":{"name":"Cisco Catalyst 6800 Series Switches","slug":"cisco-catalyst-6800-series-switches","vendor":"Cisco"},"cve":{"id":"CVE-2026-20084"},"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":"2026-07-20T01:02:23Z","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 16.10.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1d 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 16.10.1f when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.10.1g 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 16.12.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1y when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1z when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.12.1z1 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 16.12.2a 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 16.6.5a 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 16.7.4 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 16.8.1d when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.8.1e 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 16.9.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.1c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.1d 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 16.9.2a 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 16.9.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 16.9.3h 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 16.9.4c 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 16.9.5f 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 17.1.1a 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 17.12.1 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 17.12.1z4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.1z6 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 17.12.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.4b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.5 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.5a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.5b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.5c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.12.5d 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 17.15.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1y when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.1z when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.2 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.2a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.2b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.2c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.3 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.3a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.3b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4c when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4d when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.15.4s1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.16.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.16.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.17.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.18.1 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.18.1a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.18.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.18.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.18.1y 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 17.3.1w when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.1x when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.3.1z 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 17.6.8 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.6.8a 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; Cisco IOS XE Software Release 17.9.6 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.6a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.6b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.7 when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.7a when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.7b when installed on Cisco Catalyst 6800 Series Switches; Cisco IOS XE Software Release 17.9.8 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":0.00354,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2026-03-25T16:00:00Z","updated_at":"2026-03-25T16:00:00Z","advisory_updated_at":"2026-03-25T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bootp-WuBhNBxA","row_display_order":3}]}