FortiWeb OS Command Injection (CVE-2025-66178) 7.0-8.0 (pre-8.0.2)
CVE-2025-66178 Published on March 10, 2026
A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.11, FortiWeb 7.2.0 through 7.2.12, FortiWeb 7.0.0 through 7.0.12 may allow an authenticated attacked to execute arbitrary commands via a specialy crafted HTTP request.
Vulnerability Analysis
CVE-2025-66178 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2025-66178 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2025-66178
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Affected Versions
Fortinet FortiWeb:- Version 8.0.0, <= 8.0.1 is affected.
- Version 7.6.0, <= 7.6.5 is affected.
- Version 7.4.0, <= 7.4.11 is affected.
- Version 7.2.0, <= 7.2.12 is affected.
- Version 7.0.0, <= 7.0.12 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.