{"schema":"threatline.record/2","record":{"id":"CVE-2026-20349","aliases":[],"summary":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability","details":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition.","categories":["Network & edge"],"product":"Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) ","vendor":"Cisco","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20349","source_modified_at":"2026-09-16T20:15:35.860Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"version":"9.16.1","status":"affected"},{"version":"9.16.1.28","status":"affected"},{"version":"9.16.2","status":"affected"},{"version":"9.16.2.3","status":"affected"},{"version":"9.16.2.7","status":"affected"},{"version":"9.16.2.11","status":"affected"},{"version":"9.16.2.13","status":"affected"},{"version":"9.16.2.14","status":"affected"},{"version":"9.16.3.3","status":"affected"},{"version":"9.16.3","status":"affected"},{"version":"9.16.3.14","status":"affected"},{"version":"9.18.1","status":"affected"},{"version":"9.16.3.15","status":"affected"},{"version":"9.18.1.3","status":"affected"},{"version":"9.18.2","status":"affected"},{"version":"9.16.3.19","status":"affected"},{"version":"9.16.3.23","status":"affected"},{"version":"9.18.2.5","status":"affected"},{"version":"9.16.4","status":"affected"},{"version":"9.18.2.7","status":"affected"},{"version":"9.19.1","status":"affected"},{"version":"9.16.4.9","status":"affected"},{"version":"9.18.2.8","status":"affected"},{"version":"9.16.4.14","status":"affected"},{"version":"9.18.3","status":"affected"},{"version":"9.19.1.5","status":"affected"},{"version":"9.16.4.18","status":"affected"},{"version":"9.19.1.9","status":"affected"},{"version":"9.18.3.39","status":"affected"},{"version":"9.16.4.19","status":"affected"}],"defaultStatus":"unknown"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20349","source_modified_at":"2026-09-16T20:15:35.860Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"7.2.0","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.2.0.1","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.2.1","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"7.3.0","status":"affected"},{"version":"7.2.2","status":"affected"},{"version":"7.2.3","status":"affected"},{"version":"7.3.1","status":"affected"},{"version":"7.2.4","status":"affected"},{"version":"7.0.6","status":"affected"},{"version":"7.2.5","status":"affected"},{"version":"7.2.4.1","status":"affected"},{"version":"7.3.1.1","status":"affected"},{"version":"7.4.0","status":"affected"},{"version":"7.0.6.1","status":"affected"},{"version":"7.2.5.1","status":"affected"},{"version":"7.4.1","status":"affected"},{"version":"7.2.6","status":"affected"},{"version":"7.0.6.2","status":"affected"},{"version":"7.4.1.1","status":"affected"},{"version":"7.2.7","status":"affected"},{"version":"7.2.5.2","status":"affected"}],"defaultStatus":"unknown"}],"fixed_versions":[],"cvss":8.6,"severity":"High","kev":{"listed":true,"date_added":"2026-08-11","due_date":"2026-08-14","required_action":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.0101,"percentile":0.62836,"score_date":"2026-10-23"},"published_at":"2026-08-11T17:06:03.091Z","modified_at":"2026-09-16T20:15:35.860Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-20349","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-09-16T20:15:35.860Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-20349","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-dos-dzv4mQFF"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20349","source":"CISA KEV"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20349","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"partial","assessed_at":"2026-08-11T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-16T20:15:35.860Z","content_hash":"a2ffefd197dda05c7ef6487ee797022d8f03defbe3eab63e196baa36093dcd86"}}