CVE-2023-25602: Fortinet FortiWeb

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

A stack-based buffer overflow in Fortinet FortiWeb 6.4 all versions, FortiWeb versions 6.3.17 and earlier, FortiWeb versions 6.2.6 and earlier, FortiWeb versions 6.1.2 and earlier, FortiWeb versions 6.0.7 and earlier, FortiWeb versions 5.9.1 and earlier, FortiWeb 5.8 all versions, FortiWeb 5.7 all versions, FortiWeb 5.6 all versions allows attacker to execute unauthorized code or commands via specially crafted command arguments.

Affected products

• Fortinet FortiWeb: from 5.6.0, before 5.9.2 (fixed in 5.9.2); from 6.0.0, before 6.0.8 (fixed in 6.0.8); from 6.1.0, before 6.1.3 (fixed in 6.1.3); from 6.2.0, before 6.2.7 (fixed in 6.2.7); from 6.3.0, before 6.3.18 (fixed in 6.3.18); from 6.4.0, up to and including 6.4.2

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