CVE-2026-20079: Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability

Published Mar 4, 2026
·
Updated

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.  This vulnerability is due to an improper system process that is created at boot time. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute a variety of scripts and commands that allow root access to the device. 

Affected Software

1 affected component
Cisco Cisco Secure Firewall Management Center (FMC) Software

Event History

Mar 4, 2026
CVE Published
via MITRE·05:17 PM
Data Sourced
via MITRE·05:17 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeakness
News Published
via BleepingComputer·07:12 PM
News Published
via BleepingComputer·07:13 PM
Mar 5, 2026
News Published
via BleepingComputer·10:32 AM
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Frequently Asked Questions

1

What is the severity of CVE-2026-20079?

CVE-2026-20079 has been classified as a high-severity vulnerability due to its potential to allow unauthenticated remote attackers to gain root access.

2

How do I fix CVE-2026-20079?

To fix CVE-2026-20079, update to the latest version of Cisco Secure Firewall Management Center Software which addresses this vulnerability.

3

Who is affected by CVE-2026-20079?

CVE-2026-20079 affects users running Cisco Secure Firewall Management Center Software without the latest security updates.

4

What type of attack is associated with CVE-2026-20079?

The attack associated with CVE-2026-20079 involves bypassing authentication and executing script files to obtain unauthorized root access.

5

Is there a known exploit for CVE-2026-20079?

Yes, CVE-2026-20079 may be actively exploited, making it crucial for affected users to apply security patches immediately.

Contact

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