Cisco ASA and FTD Denial-of-Service
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain a missing release of resource after effective lifetime vulnerability that could allow an unauthenticated, remote attacker to cause a denial-of-service (DoS) of the RAVPN service. Added to the CISA KEV catalog on 2024-10-24.
Why this severity: CVSS 5.8 (v3.1, CNA), actively exploited (CISA KEV)
- Started
- Oct 23, 2024
- Closed
- Oct 24, 2024
Affected
- See vendor advisory (versions are not listed in the KEV record)
Fixed in
- See vendor advisory linked in sources
Timeline2
Advisories3
Notes & caveats
Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).
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