CVE-2026-20079

Published: Mar 4, 2026Modified: Sep 9, 2026

10.0

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 6.0

Source: psirt@cisco.com (Secondary)

Description

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 (72)

Products: Cisco: Secure Firewall Management Center

Cisco

1 product

Secure Firewall Management Center

Configuration A

72 vulnerable

Vulnerable Software	Affected Versions
Cisco Secure Firewall Management Center	Version 10.0.0
Cisco Secure Firewall Management Center	Version 10.0.1
Cisco Secure Firewall Management Center	Version 7.0.0.1
Cisco Secure Firewall Management Center	Version 7.0.0
Cisco Secure Firewall Management Center	Version 7.0.1.1
Cisco Secure Firewall Management Center	Version 7.0.1
Cisco Secure Firewall Management Center	Version 7.0.2.1
Cisco Secure Firewall Management Center	Version 7.0.2
Cisco Secure Firewall Management Center	Version 7.0.3
Cisco Secure Firewall Management Center	Version 7.0.4
Cisco Secure Firewall Management Center	Version 7.0.5
Cisco Secure Firewall Management Center	Version 7.0.6.1
Cisco Secure Firewall Management Center	Version 7.0.6.2
Cisco Secure Firewall Management Center	Version 7.0.6.3
Cisco Secure Firewall Management Center	Version 7.0.6
Cisco Secure Firewall Management Center	Version 7.0.7
Cisco Secure Firewall Management Center	Version 7.0.8.1
Cisco Secure Firewall Management Center	Version 7.0.8
Cisco Secure Firewall Management Center	Version 7.0.9
Cisco Secure Firewall Management Center	Version 7.1.0.1
Cisco Secure Firewall Management Center	Version 7.1.0.2
Cisco Secure Firewall Management Center	Version 7.1.0.3
Cisco Secure Firewall Management Center	Version 7.1.0
Cisco Secure Firewall Management Center	Version 7.2.0.1
Cisco Secure Firewall Management Center	Version 7.2.0
Cisco Secure Firewall Management Center	Version 7.2.10.1
Cisco Secure Firewall Management Center	Version 7.2.10.2
Cisco Secure Firewall Management Center	Version 7.2.10
Cisco Secure Firewall Management Center	Version 7.2.11
Cisco Secure Firewall Management Center	Version 7.2.1
Cisco Secure Firewall Management Center	Version 7.2.2
Cisco Secure Firewall Management Center	Version 7.2.3.1
Cisco Secure Firewall Management Center	Version 7.2.3
Cisco Secure Firewall Management Center	Version 7.2.4.1
Cisco Secure Firewall Management Center	Version 7.2.4
Cisco Secure Firewall Management Center	Version 7.2.5.1
Cisco Secure Firewall Management Center	Version 7.2.5.2
Cisco Secure Firewall Management Center	Version 7.2.5
Cisco Secure Firewall Management Center	Version 7.2.6
Cisco Secure Firewall Management Center	Version 7.2.7
Cisco Secure Firewall Management Center	Version 7.2.8.1
Cisco Secure Firewall Management Center	Version 7.2.8
Cisco Secure Firewall Management Center	Version 7.2.9
Cisco Secure Firewall Management Center	Version 7.3.0
Cisco Secure Firewall Management Center	Version 7.3.1.1
Cisco Secure Firewall Management Center	Version 7.3.1.2
Cisco Secure Firewall Management Center	Version 7.3.1
Cisco Secure Firewall Management Center	Version 7.4.0
Cisco Secure Firewall Management Center	Version 7.4.1.1
Cisco Secure Firewall Management Center	Version 7.4.1
Cisco Secure Firewall Management Center	Version 7.4.2.1
Cisco Secure Firewall Management Center	Version 7.4.2.2
Cisco Secure Firewall Management Center	Version 7.4.2.3
Cisco Secure Firewall Management Center	Version 7.4.2.4
Cisco Secure Firewall Management Center	Version 7.4.2
Cisco Secure Firewall Management Center	Version 7.4.3
Cisco Secure Firewall Management Center	Version 7.4.4
Cisco Secure Firewall Management Center	Version 7.4.5
Cisco Secure Firewall Management Center	Version 7.4.6
Cisco Secure Firewall Management Center	Version 7.4.7
Cisco Secure Firewall Management Center	Version 7.6.0
Cisco Secure Firewall Management Center	Version 7.6.1
Cisco Secure Firewall Management Center	Version 7.6.2.1
Cisco Secure Firewall Management Center	Version 7.6.2
Cisco Secure Firewall Management Center	Version 7.6.3
Cisco Secure Firewall Management Center	Version 7.6.4
Cisco Secure Firewall Management Center	Version 7.6.5
Cisco Secure Firewall Management Center	Version 7.7.0
Cisco Secure Firewall Management Center	Version 7.7.10.1
Cisco Secure Firewall Management Center	Version 7.7.10
Cisco Secure Firewall Management Center	Version 7.7.11
Cisco Secure Firewall Management Center	Version 7.7.12

Related CWEs

CWE-288

Authentication Bypass Using an Alternate Path or Channel

A product requires authentication, but the product has an alternate path or channel that does not require authentication.

References (2)

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-onprem-fmc-authbypass-5JPp45V2

Source: psirt@cisco.com

Vendor Advisory

http://seclists.org/fulldisclosure/2026/Aug/80

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party AdvisoryMailing List

Timeline

No history available yet.