Improper Neutralization of Argument Delimiters in a Command in Cisco Firewall Threat Defense (FTD) - CVE-2026-20063
Published: March 10, 2026
Vulnerability identifier: #VU123684
CSH Severity: Low
CVSS v4: 8.4 [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]
CVE-ID: CVE-2026-20063
CWE-ID: CWE-88
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation in certain CLI commands. A local privileged user can supply specially crafted arguments for specific CLI commands and execute arbitrary code as root.
Affected software
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2026-20063
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 7.6.4, 7.7.11