CVE-2023-23783: Fortinet FortiWeb

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

A use of externally-controlled format string in Fortinet FortiWeb version 7.0.0 through 7.0.1, FortiWeb 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted command arguments.

Affected products

• Fortinet FortiWeb: from 6.4.0, before 6.4.2 (fixed in 6.4.2); from 7.0.0, before 7.0.2 (fixed in 7.0.2)

Published 2023-02-16. Last modified 2026-06-17.