CVE-2025-20133

The CVE-2025-20133 issue affects Cisco Secure Firewall ASA/FTD Remote Access SSL VPN authentication. The vulnerability stems from ineffective validation of user-supplied input during the Remote Access SSL VPN authentication process. An unauthenticated, remote attacker could send a crafted request...

CVE-2024-20260: Memory Allocation with Excessive Size Value

Update for September 16, 2026: The original 1.0 version of this advisory was specific to the Cisco Adaptive Security Virtual Appliance ASAv and Cisco Secure Firewall Threat Defense Virtual FTDv models. However, it was later found that this vulnerability affects all Cisco Secure Firewall Adaptive...