{"cvss":8.6,"datePublished":"2026-08-11T00:00:00Z","dateUpdated":"2026-08-11T00:00:00Z","description":"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.","dueDate":"2026-08-14T00:00:00Z","id":"CVE-2026-20349","kev_catalogs":["vulncheck"],"knownRansomwareCampaignUse":"Unknown","product":"Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) ","requiredAction":"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.","severity":"HIGH","source":"vulncheck_kev","title":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection Vulnerability","vendor":"Cisco"}