VYPR
Unrated severityNVD Advisory· Published Mar 4, 2026· Updated Mar 5, 2026

Cisco Secure Firewall Management Center Command Injection Vulnerability

CVE-2026-20044

Description

A vulnerability in the lockdown mechanism of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, local attacker to perform arbitrary commands as root.

This vulnerability is due to insufficient restrictions on remediation modules while in lockdown mode. An attacker could exploit this vulnerability by sending crafted input to the system CLI of the affected device. A successful exploit could allow the attacker to run arbitrary commands or code as root, even when the system is in lockdown mode. To exploit this vulnerability, the attacker must have valid administrative credentials.

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Affected products

2

Patches

Vulnerability mechanics

References

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