CVE-2026-76420

CVE CVE-2026-76420EUVD EUVD-2026-80887Published 2026-09-16T16:55:57.000ZLast changed 2026-09-17T11:39:24.000ZCVSS 9.0

What the advisory describes

A vulnerability in the internal configuration of the Apache JServ Protocol (AJP) connector for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to impersonate a peer device. This vulnerability is due to incorrect initialization of encryption parameters for the AJP connector at boot time. An attacker could exploit this vulnerability by sending crafted packets to the AJP connector. A successful exploit could allow the attacker to execute commands as root and gain full control over the FMC REST APIs on the affected device. Note: This vulnerability can be exploited only if the valid sftunnel connection between Cisco Secure FMC Software and Cisco Secure FTD Software is down.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Cisco — Cisco Secure Firewall Management Center (FMC) 7.6.3; 7.2.5.2; 7.0.8.1; 7.2.3.1; 7.0.6.2; 7.4.1; 7.0.3; 7.2.10.2; 7.0.1.1; 7.2.5; 7.2.8.1; 7.2.2; 7.0.6; 7.6.1; 7.4.6; 7.2.7; 7.3.1.1; 7.6.5; 7.4.2.2; 7.2.9; 7.0.6.1; 7.4.4; 7.4.3; 7.2.11; 7.7.12; 7.6.4; 7.7.0; 7.3.1; 7.0.5; 7.4.2.1; 7.2.0; 7.2.5.1; 7.2.10; 7.7.10; 7.0.4; 7.4.1.1; 7.6.2.1; 7.2.1; 7.6.0; 7.0.1; 7.4.2.4; 7.2.10.1; 7.4.2.3; 10.0.1; 7.4.7; 7.2.4; 7.3.1.2; 7.4.2; 7.0.0; 7.0.8; 7.2.3; 7.2.0.1; 7.2.4.1; 7.0.2.1; 7.4.5; 7.4.0; 7.7.10.1; 7.0.9; 7.0.7; 7.2.8; 10.0.0; 7.3.0; 7.6.2; 7.0.6.3; 7.7.11; 7.0.2; 7.2.6; 7.0.0.1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Cisco — Secure Firewall Management Center (FMC)

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.