Incorrect Privilege Assignment in Security Fabric

Summary

An incorrect privilege assignment vulnerability [CWE-266] in FortiOS Security Fabric may allow a remote authenticated attacker with high privileges to escalate their privileges to super-admin via registering the device to a malicious FortiManager.

Version Affected Solution
FortiOS 7.6 7.6.0 through 7.6.2 Upgrade to 7.6.3 or above
FortiOS 7.4 7.4.0 through 7.4.7 Upgrade to 7.4.8 or above
FortiOS 7.2 7.2 all versions Migrate to a fixed release
FortiOS 7.0 7.0 all versions Migrate to a fixed release
FortiOS 6.4 6.4 all versions Migrate to a fixed release
Follow the recommended upgrade path using our tool at: https://docs.fortinet.com/upgrade-tool

Acknowledgement

Fortinet is pleased to thank Arturo Cruz from Telefónica Tech's Cybersecurity Architecture team for reporting this vulnerability under responsible disclosure.

Timeline

2025-08-12: Initial publication