SB2026031047 - Privilege escalation in Cisco ASA and Cisco FTD
Published: March 10, 2026
Security Bulletin ID
SB2026031047
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) Improper Neutralization of Argument Delimiters in a Command (CVE-ID: CVE-2026-20016)
CWE-ID: CWE-88 - Argument Injection or Modification
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 in the Cisco FXOS Software CLI feature. A local privileged user can supply specially crafted arguments for specific CLI commands and execute arbitrary code as root.
Remediation
Install update from vendor's website.