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Medium 5.8Published Sep 16, 2026

CVE-2026-20120Cisco FTD ACL bypass vulnerability

Updated under an hour ago ()

Does this affect you?

It affects Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Weakness (CWE)
CWE-284
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
cisco
NVD analysis
Awaiting Analysis
Record last updated
Sep 18, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
cisco:secure_firewall_adaptive_security_appliance_asa_software (from the name)
9.23.1; 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; and 8 more ranges
CNA record
Cisco Cisco Secure Firewall Threat Defense (FTD) Software
cisco:secure_firewall_threat_defense_ftd_software (from the name)
7.6.0; 7.7.0; 7.6.1; 7.6.2; 7.7.10; 7.7.11; 7.6.2.1; 7.7.10.1
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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