Information disclosure through debug features

Summary

An active debug code vulnerability [CWE-489] in FortiClientWindows may allow a local attacker to run the application step by step and retrieve the saved VPN user password

Version Affected Solution
FortiClientWindows 7.4 7.4.0 through 7.4.3 Upgrade to 7.4.4 or above
FortiClientWindows 7.2 7.2.0 through 7.2.10 Upgrade to 7.2.11 or above
FortiClientWindows 7.0 7.0 all versions Migrate to a fixed release

Acknowledgement

Fortinet is pleased to thank Chris Elliott and Cameron Stokes from CrowdStrike for reporting this vulnerability under responsible disclosure.

Timeline

2025-11-18: Initial publication