CVE-2025-53951: Fortinet Fortidlp Agent

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Fortinet Fortidlp Agent: from 10.3.1, up to and including 11.5.1

Published 2025-10-16. Last modified 2026-10-09.