Cisco Patches Actively Exploited ASA and FTD VPN Flaw That Can Crash Firewalls

Cisco has released patches to address a high-severity security flaw in Secure Firewall Adaptive Security Appliance ASA Software and Secure Firewall Threat Defense FTD Software that it said has been exploited in the wild. The vulnerability, tracked as CVE-2026-76418 , is rated 8.6 on the CVSS...

CVE-2026-76418 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability

A vulnerability in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service...

Cisco Adaptive Security Appliance Software Authorization Bypass (cisco-sa-asaftd-saml-bypass-KkNvXyKW)

A vulnerability in the implementation of SAML 2.0 single sign-on SSO for remote access VPN services in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to successfully establish a VPN session on an affecte...

Cisco Firepower Threat Defense Software Authorization Bypass (cisco-sa-asaftd-saml-bypass-KkNvXyKW)

A vulnerability in the implementation of SAML 2.0 single sign-on SSO for remote access VPN services in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to successfully establish a VPN session on an affecte...

Cisco Adaptive Security Appliance and Firepower Threat Defense Software Authorization Bypass Vulnerability

A vulnerability in the implementation of SAML 2.0 single sign-on SSO for remote access VPN services in Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to successfully establish a VPN session on an affecte...

PT-2024-4160

Name of the Vulnerable Software and Affected Versions Cisco Adaptive Security Appliance ASA Software affected versions not specified Cisco Firepower Threat Defense FTD Software affected versions not specified Description A vulnerability in the implementation of SAML 2.0 single sign-on SSO for...

CVE-2014-8023

Cisco ASA Software 9.2(.3) and earlier is affected by a vulnerability in challenge‑response tunnel group selection. Improper implementation allows an authenticated remote attacker to bypass resource access restrictions by crafting a tunnel-group parameter, potentially enabling access to resources...

CVE-2014-8023

Cisco Adaptive Security Appliance ASA Software 9.2.3 and earlier, when challenge-response authentication is used, does not properly select tunnel groups, which allows remote authenticated users to bypass intended resource-access restrictions via a crafted tunnel-group parameter, aka Bug ID...

Cisco ASA Challenge-Response Tunnel Group Selection Bypass Vulnerability

A vulnerability in the authentication code of Cisco ASA Software could allow an authenticated, remote attacker to access resources of a VPN tunnel group. The vulnerability is due to improper implementation of the tunnel group selection when a user authenticates to the remote access VPN via the...