{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T16:43:05Z","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-ewlc-dos-wFujBHKw","slug":"cisco-sa-ewlc-dos-wfujbhkw","vendor":"Cisco","title":"Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service Vulnerability","summary":"A vulnerability in the HTTP-based client profiling feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic through a wireless access point. A successful exploit could allow the attacker to cause CPU utilization to increase, which could result in a DoS condition on an affected device and could cause new wireless client associations to fail. Once the offending traffic stops, the affected system will return to an operational state and new client associations will succeed. 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-ewlc-dos-wFujBHKw This advisory is part of the March 2023 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 2023 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.","severity":"High","published_at":"2023-03-22T16:00:00Z","updated_at":"2023-03-22T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw/csaf/cisco-sa-ewlc-dos-wFujBHKw.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":2,"public_evidence_count":2,"kev_count":0},"cves":[{"id":"CVE-2023-20067","kev":false}],"public_evidence":[{"product":{"name":"Cisco IOS XE Catalyst SD-WAN","slug":"cisco-ios-xe-catalyst-sd-wan","vendor":"Cisco"},"cve":{"id":"CVE-2023-20067"},"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":"2026-07-20T03:41:19Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"16.10.1; 16.11.1a; 16.11.1b; 16.12.3; 16.12.4; 16.12.4a; 16.12.5; 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,"published_at":"2023-03-22T16:00:00Z","updated_at":"2023-03-22T16:00:00Z","advisory_updated_at":"2023-03-22T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw"},"row_display_order":1},{"product":{"name":"Cisco IOS XE Software","slug":"cisco-ios-xe-software","vendor":"Cisco"},"cve":{"id":"CVE-2023-20067"},"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":"2026-07-20T03:41:19Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"16.10.1e; 16.10.1s; 16.11.1; 16.11.1c; 16.12.1; 16.12.1s; 16.12.1t; 16.12.2s; 16.12.2t; 16.12.3s; 16.12.6; 16.12.6a; 16.12.7; 16.12.8; 17.1.1; 17.1.1s; 17.1.1t; 17.1.2; 17.1.3; 17.2.1; 17.2.1a; 17.3.1; 17.3.2; 17.3.2a; 17.3.3; 17.3.4; 17.3.4c; 17.3.5; 17.3.5a; 17.3.5b; 17.3.6; 17.4.1; 17.5.1; 17.5.1c; 17.6.1; 17.6.1y; 17.6.2; 17.6.3; 17.7.1; 17.8.1; 17.9.1","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,"published_at":"2023-03-22T16:00:00Z","updated_at":"2023-03-22T16:00:00Z","advisory_updated_at":"2023-03-22T16:00:00Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-dos-wFujBHKw"},"row_display_order":2}]}