CVE-2026-20120

MEDIUMCVSS 5.8/10

Last modified

CVE-2026-20120 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. A vulnerability 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. This vulnerability is due to a logic error in populating group access control policies (ACPs) with OGS configured. An attacker could exploit this vulnerability by sending traffic that should be blocked through the device.

Description

A vulnerability 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. This vulnerability is due to a logic error in populating group access control policies (ACPs) with OGS configured. An attacker could exploit this vulnerability by sending traffic that should be blocked through the device. A successful exploit could allow the attacker to bypass access controls and reach devices in protected networks.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
CiscoCisco Secure Firewall Adaptive Security Appliance (ASA) Software9.23.1; 9.22.1.1; 9.22.1.3; 9.22.1.2; 9.22.1.6; 9.22.2; 9.23.1.3; 9.22.2.4; 9.23.1.7; 9.22.2.9; 9.23.1.13; 9.22.2.13; 9.23.1.19; 9.22.2.14; 9.23.1.22; 9.22.2.20
CiscoCisco Secure Firewall Threat Defense (FTD) Software7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; 7.6.2.1; 7.7.10.1

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-20120?
A vulnerability 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. This vulnerability is due to a logic error in populating group access control policies (ACPs) with OGS configured. An attacker could exploit this vulnerability by sending traffic that should be blocked through the device. A successful exploit could allow the attacker to bypass access controls and reach devices in protected networks.
How severe is CVE-2026-20120?
CVE-2026-20120 has a CVSS score of 5.8/10 (MEDIUM severity).
How do I fix CVE-2026-20120?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST