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6.0
Cisco FMC Software Allows Local Attackers to Run Commands as Root
CVE-2026-20044
Summary
A serious issue in Cisco FMC Software lets an attacker with admin access run any command they want, even if the system is in lockdown mode. This means they could potentially cause significant damage. To fix this, update your FMC Software to the latest version as soon as possible.
Original title
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 vulne...
Original 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.
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.
nvd CVSS3.1
6.0
Vulnerability type
CWE-269
Improper Privilege Management
Published: 4 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026