CVE-2023-33299: Fortinet Fortinac

Critical severity, CVSS 9.8. EPSS: 24.3% chance of exploitation in the next 30 days.

A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows attacker to execute unauthorized code or commands via specifically crafted request on inter-server communication port. Note FortiNAC versions 8.x will not be fixed.

Affected products

• Fortinet Fortinac: from 8.5.0, up to and including 8.5.4; from 8.6.0, up to and including 8.6.5; from 8.7.0, up to and including 8.7.6; from 8.8.0, up to and including 8.8.11; from 9.1.0, up to and including 9.1.9; from 9.2.0, up to and including 9.2.7; …

Published 2023-06-23. Last modified 2026-06-17.