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CVE-2026-203498.6/HIGHEPSS 94.0%CISA KEV
2026-08-11

Cisco ASA and FTD SSL VPN Remote Denial of Service Vulnerability (CVE-2026-20349)

[Affected Scope] Cisco Secure Firewall ASA and FTD Software with Remote Access SSL VPN service enabled

[Impact] Unauthenticated, remote attackers can cause an unexpected device reload, leading to a complete Denial of Service (DoS) condition

[Mitigation] Immediately upgrade to the patched software versions recommended in the Cisco Security Advisory