#VU123534 Protection mechanism failure in Cisco Firewall Threat Defense (FTD) - CVE-2026-20007

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU123534

#VU123534 Protection mechanism failure in Cisco Firewall Threat Defense (FTD) - CVE-2026-20007

Published: March 4, 2026


Vulnerability identifier: #VU123534
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20007
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass configured Snort rules.

The vulnerability exists due to a logic error in the integration of the Snort Engine rules. A remote attacker can bypass configured Snort rules and allow traffic onto the network that should have been dropped.


Remediation

Install updates from vendor's website.

External links