FortiDLP Agent Outlookproxy (11.5.1) Path Traversal Vulnerability
CVE-2025-53951 Published on October 16, 2025
An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in Fortinet FortiDLP Agent's Outlookproxy plugin for Windows 11.5.1 and 11.4.2 through 11.4.6 and 11.3.2 through 11.3.4 and 11.2.0 through 11.2.3 and 11.1.1 through 11.1.2 and 11.0.1 and 10.5.1 and 10.4.0, and 10.3.1 may allow an authenticated attacker to escalate their privilege to LocalService via sending a crafted request to a local listening port.
Vulnerability Analysis
CVE-2025-53951 can be exploited with local system access, and requires small amount of 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 low. considered to have a small impact on confidentiality and integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2025-53951 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2025-53951
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Affected Versions
Fortinet FortiDLP:- Version 11.5.1 is affected.
- Version 11.4.2, <= 11.4.6 is affected.
- Version 11.3.2, <= 11.3.4 is affected.
- Version 11.2.3 is affected.
- Version 11.2.0 is affected.
- Version 11.1.1, <= 11.1.2 is affected.
- Version 11.0.1 is affected.
- Version 10.5.1 is affected.
- Version 10.4.0 is affected.
- Version 10.3.1 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.