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Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Object Group Access Control List Bypass Vulnerabilities

Cisco Security Advisories ()1
Part of a story covered by 15 sourcesCisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software Hardening Release: September 2026Merged summary & timeline
AI summary · glm-5.3-flashSummaries by Vani AI

Cisco patched ACL Object Group Search bypass flaws in ASA and FTD firewall software that let unauthenticated attackers reach protected networks.

Cisco disclosed multiple vulnerabilities in the ACL Object Group Search implementation of Secure Firewall ASA and FTD Software, caused by a logic error in populating group access control policies. An unauthenticated remote attacker could send traffic that should be blocked through the device, bypassing configured access controls. Cisco has released software updates; no exploitation is mentioned.

Key facts
  • Logic error in OGS group ACP population causes the ACL bypass
  • Unauthenticated remote attacker can pass traffic that should be blocked
  • Affects both Cisco ASA and FTD firewall software
  • Software updates released by Cisco
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From the original article

Multiple vulnerabilities in the access control list (ACL) Object Group Search (OGS) implementation of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured access controls.

Cisco Security Advisories

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Read the full article at Cisco Security Advisories

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