OS Command Injection in FortiSandbox (4.0-5.0.2)
CVE-2025-53949 Published on December 9, 2025
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.0 through 4.4.7, FortiSandbox 4.2 all versions, FortiSandbox 4.0 all versions may allow an authenticated attacker to execute unauthorized code on the underlying system via crafted HTTP requests.
Vulnerability Analysis
CVE-2025-53949 can be exploited 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-2025-53949 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2025-53949
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Affected Versions
Fortinet FortiSandbox:- Version 5.0.0, <= 5.0.2 is affected.
- Version 4.4.0, <= 4.4.7 is affected.
- Version 4.2.1, <= 4.2.8 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.