CVE-2026-20120
Reported by cisco · Published September 16, 2026
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.
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.23.1, 9.22.1.1, 9.22.1.3 |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.0, 7.7.0, 7.6.1 |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.0, 7.7.0, 7.6.1 |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.23.1.7, 9.22.2.9, 9.23.1.13 |
Timeline
- Sep 16, 2026 Coalition ESS Score
- Sep 16, 2026 CVE Published
- Sep 17, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 18, 2026 CVE Updated