CVE-2026-20079

CRITICAL CVSS 3.1: 10.0 EPSS 75.8% ACTIVE EXPLOIT
Updated Sep 16, 2026
Cisco

CISA Known Exploited Vulnerability (KEV)

This vulnerability is actively exploited in the wild. Immediate patching is strongly recommended.

Due Date: Sep 12, 2026

Parameter Value
CVSS 10.0 (CRITICAL)
Type CWE-288 (Authentication Bypass Using Alternate Path)
Vendor Cisco
Public PoC Yes

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. 

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 72

Configuration From (including) Up to (excluding)
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.0.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.1.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.2.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.4:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.5:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.6.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.7:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.8:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.8.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.0.9:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.1.0.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.0.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.3.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.4:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.4.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.5.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.6:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.7:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.8:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.8.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.9:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.10.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.2.11:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.3.1.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.1.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.2.4:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.4:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.5:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.6:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.4.7:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.2:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.2.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.3:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.4:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.6.5:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.10:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.10.1:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.11:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:7.7.12:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:10.0.0:*:*:*:*:*:*:*
Cisco Secure_Firewall_Management_Center
cpe:2.3:a:cisco:secure_firewall_management_center:10.0.1:*:*:*:*:*:*:*