Arbitrary Command Execution Vulnerability in Cisco Secure Firewall Management Center
CVE-2026-20044

6MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Secure Firewall Management Center (fmc)
Vendor
CVE Published:
4 March 2026

Badges

👾 Exploit Exists

What is CVE-2026-20044?

A significant vulnerability exists in the lockdown mechanism of Cisco Secure Firewall Management Center (FMC) Software that permits an authenticated local attacker to execute arbitrary commands with root privileges. This issue stems from inadequate restrictions on remediation modules during lockdown mode, allowing an attacker with valid administrative credentials to manipulate the system CLI. By sending specially crafted input, the attacker can gain unauthorized control, posing a severe security risk even when the system is designed to limit access.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Cisco Secure Firewall Management Center (FMC) 6.4.0.6

Cisco Secure Firewall Management Center (FMC) 6.4.0.7

Cisco Secure Firewall Management Center (FMC) 6.4.0.4

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

JSON
.