CVE-2025-20265CWE-74

Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability

Critical · published August 14, 2025

CVSS v3.1
10.0
EPSS
16%
Percentile
96.9
In the wild
Unconfirmed
What it is

🚨 A lack of proper input handling in Cisco Secure Firewall Management Center could let an attacker execute arbitrary commands remotely! 🔥 Think of it like a bouncer at a club who doesn’t really check IDs — anyone can walk in and take control of the VIP section if they just flash a badge without it being verified! This is a game changer! An attacker could waltz in, execute high-privilege commands, and wreak havoc on your security infrastructure. We're talking about unauthorized access that could lead to data breaches or system manipulations, and the consequences could be absolutely devastating!

Put simply

Think of it like a bouncer at a club who doesn’t really check IDs — anyone can walk in and take control of the VIP section if they just flash a badge without it being verified! The vulnerability arises from improper handling of user input during the authentication phase for RADIUS connections, allowing remote attackers to inject shell commands that the device will execute.

What to do

This is a game changer! An attacker could waltz in, execute high-privilege commands, and wreak havoc on your security infrastructure. We're talking about unauthorized access that could lead to data breaches or system manipulations, and the consequences could be absolutely devastating! To mitigate this threat, ensure you don't have RADIUS authentication configured on your Cisco Secure FMC Software unless necessary. If you must use it, apply the latest updates immediately and consider implementing additional security measures like multi-factor authentication. Don't forget to audit your configurations! You've got this! Follow these steps, and you'll be one step closer to locking down your security fortress! 🛡️

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.15825 · 96.9th percentile
Weakness
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Published
2025-08-14T16:30Z
EPSS history
Timeline
  • 14 AUG 16:30Z
    Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability
    cvelistv5