Improper Authorization in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - CVE-2026-76420
Published: September 17, 2026
Vulnerability identifier: #VU150523
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-76420
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to incorrect initialization of encryption parameters for the Apache JServ Protocol (AJP) connector at boot time. A remote attacker can send specially crafted packets to the AJP connector and execute arbitrary commands on the target system.
Affected software
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
How to mitigate CVE-2026-76420
Install updates from vendor's website.
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - addressed in versions 7.0.10, 7.2.12, 7.6.6, 7.7.13