CVE-2023-36641: Fortinet FortiOS

Medium severity, CVSS 6.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A numeric truncation error in Fortinet FortiProxy version 7.2.0 through 7.2.4, FortiProxy version 7.0.0 through 7.0.10, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1, all versions, FortiProxy 1.0 all versions, FortiOS version 7.4.0, FortiOS version 7.2.0 through 7.2.5, FortiOS version 7.0.0 through 7.0.12, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions allows attacker to denial of service via specifically crafted HTTP requests.

Affected products

• Fortinet FortiOS: from 6.0.0, up to and including 6.0.17; from 6.2.0, up to and including 6.2.15; from 6.4.0, up to and including 6.4.14; from 7.0.0, up to and including 7.0.12; from 7.2.0, up to and including 7.2.5
• Fortinet FortiProxy: from 1.0.0, up to and including 1.0.7; from 1.1.0, up to and including 1.1.6; from 1.2.0, up to and including 1.2.13; from 2.0.0, up to and including 2.0.13; from 7.0.0, up to and including 7.0.10; from 7.2.0, up to and including 7.2.4

Published 2023-11-14. Last modified 2026-06-17.