CVE-2025-58034KEV · OVERDUECWE-78command-injection

Fortinet FortiWeb OS Command Injection Vulnerability

High · published November 18, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.2. It is confirmed in active exploitation. It sits in the 99.0th percentile for exploit probability.

333
days past CISA
deadline
CVSS v3.1
7.2
EPSS
55%
Percentile
99.0
In the wild
Confirmed
What it is

⚠️ An attacker can wield crafted HTTP requests like a magician pulling bunnies out of hats! In Fortinet FortiWeb, a sneaky OS Command Injection vulnerability lurks in versions from 7.0.0 to 8.0.1. 🔥 Think of this like a restaurant that allows customers to place orders without checking the menu. If a diner can slip in secret instructions, they could corrupt the kitchen’s operations, leading to disastrous dishes—or in this case, unauthorized code execution on your server. If this vulnerability is exploited, an authenticated attacker can execute arbitrary commands on the underlying system. This could result in unauthorized access to sensitive data, alteration of system settings, or even total control over your server. The potential fallout is concerning, especially if sensitive information is at stake.

Put simply

Think of this like a restaurant that allows customers to place orders without checking the menu. If a diner can slip in secret instructions, they could corrupt the kitchen’s operations, leading to disastrous dishes—or in this case, unauthorized code execution on your server. This vulnerability arises from improper neutralization of special elements in OS commands, allowing attackers to manipulate system behavior through crafted requests or CLI commands. As a result, any authenticated user can inadvertently become a rogue administrator.

What to do

If this vulnerability is exploited, an authenticated attacker can execute arbitrary commands on the underlying system. This could result in unauthorized access to sensitive data, alteration of system settings, or even total control over your server. The potential fallout is concerning, especially if sensitive information is at stake. To remediate, ensure you upgrade to FortiWeb versions 8.0.2, 7.6.6, 7.4.11, 7.2.12, or 7.0.12 as soon as possible. Additionally, review user permissions and limit access to trusted personnel. Regularly audit logs for any suspicious activity. You’ve got this! Follow these steps, and you’ll lock down your Fortinet FortiWeb instance in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.54724 · 99.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-11-18T22:16Z
KEV added
2025-11-18 · due 2025-11-25
Affected products (5)
ProductVersionsFixed in
fortinet/fortiweb≥ 7.0.0, < 7.0.127.0.12
fortinet/fortiweb≥ 7.2.0, < 7.2.127.2.12
fortinet/fortiweb≥ 7.4.0, < 7.4.117.4.11
fortinet/fortiweb≥ 7.6.0, < 7.6.67.6.6
fortinet/fortiweb≥ 8.0.0, < 8.0.28.0.2
References (2)
EPSS history
Timeline
  • 18 NOV 17:01Z
    An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiWeb 8.0.0…
    cvelistv5
  • 18 NOV 00:00Z
    Added to CISA KEV — remediate by Nov 25
    kev