SB2026030648 - Privilege escalation in Cisco Secure Firewall Adaptive Security Appliance (ASA)
Published: March 6, 2026 Updated: March 9, 2026
Security Bulletin ID
SB2026030648
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) OS Command Injection (CVE-ID: CVE-2026-20008)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation. A local privileged user can submit a specially crafting valid Lua code as a malicious parameter for a CLI command and execute arbitrary OS commands as root.
Remediation
Install update from vendor's website.