Improper Neutralization of Argument Delimiters in a Command in Cisco Firewall Threat Defense (FTD) - CVE-2026-20064
Published: March 10, 2026
Vulnerability identifier: #VU123677
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20064
CWE-ID: CWE-88
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to improper validation of the user-supplied input for a specific CLI command. A local user can pass specially crafted arguments to a CLI command and perform a denial of service attack.
Affected software
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2026-20064
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 7.0.9, 7.2.11, 7.4.3, 7.6.4, 7.7.11