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Severe, 6 weeks1498Projects326

1498 severe, 6 weeks · 326 projects

CiscoCVE-2026-76420

Cisco Secure Firewall Management Center (FMC): remote code execution

Cisco

CVE-2026-76420 · Published Sep 16, 2026 · updated Sep 17, 2026

Critical9.0
No fix yet
Cisco advisory

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.

Affected versions

PackageAffectedFixed in
Cisco Secure Firewall Management Center (FMC)
Product
<= 7.0.0No fix yet
<= 7.0.0.1No fix yet
<= 7.0.1No fix yet
<= 7.0.1.1No fix yet
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