Local privilege escalation via improper symlink following

Summary

A UNIX symbolic link (Symlink) Following vulnerability [CWE-61] in FortiClientLinux may allow a local and unprivileged user to escalate their privileges to root.

Version Affected Solution
FortiClientLinux 8.0 Not affected Not Applicable
FortiClientLinux 7.4 7.4.0 through 7.4.4 Upgrade to 7.4.5 or above
FortiClientLinux 7.2 7.2.2 through 7.2.12 Upgrade to 7.2.13 or above

Acknowledgement

Fortinet is pleased to thank Febin Mon Saji from Astra Security working with Trend Zero Day Initiative for reporting this vulnerability under responsible disclosure.

Timeline

2026-03-10: Initial publication