RCE in Cisco Adaptive_security_appliance_software
CVE-2026-20008
A vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to cra…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Cisco Adaptive_security_appliance_software
- Cisco Secure Firewall Adaptive Security Appliance (Asa) Software — versions 9.12.3, 9.12.1, 9.12.2
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 6.4.0.1, 6.4.0.2, 6.4.0.5
- Cisco Firepower_threat_defense_software
Weakness classification (CWE)
References
- psirt@cisco.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20008?
- CVE-2026-20008 is a medium-severity vulnerability in Cisco Adaptive_security_appliance_software, classified under OS Command Injection. CVSS score: 6.0/10. Published 2026-03-04.
- How severe is CVE-2026-20008?
- Medium severity. CVSS v3 base score is 6.0 out of 10.