CVE-2023-22639: Fortinet FortiOS

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

A out-of-bounds write in Fortinet FortiOS version 7.2.0 through 7.2.3, FortiOS version 7.0.0 through 7.0.10, FortiOS version 6.4.0 through 6.4.12, FortiOS all versions 6.2, FortiOS all versions 6.0, FortiProxy version 7.2.0 through 7.2.2, FortiProxy version 7.0.0 through 7.0.8, FortiProxy all versions 2.0, FortiProxy all versions 1.2, FortiProxy all versions 1.1, FortiProxy all versions 1.0 allows attacker to escalation of privilege via specifically crafted commands.

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 6.4.12; from 7.0.0, up to and including 7.0.9; from 7.2.0, up to and including 7.2.3
• 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 2.0.12; from 7.0.0, up to and including 7.0.8; version 7.2.0 only; …

Published 2023-06-13. Last modified 2026-06-17.