Cisco
CVE-2026-20044
MEDIUM
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Cisco Secure Firewall Management Center lockdown bypass allows authenticated local administrators to execute arbitrary commands as root by sending crafted CLI input that exploits insufficient restrictions on remediation modules. An attacker with valid admin credentials can circumvent lockdown protections to achieve full system compromise. No patch is currently available.
Technical ContextAI
Classified as CWE-269 (Improper Privilege Management). 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
Affected ProductsAI
A vulnerability in the lockdown mechanism of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, local attacker to pe
RemediationAI
Monitor vendor advisories for a patch.
Same weakness CWE-269 – Improper Privilege Management
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External POC / Exploit Code
Leaving vuln.today