CVE-2021-44171: Fortinet FortiOS

High severity, CVSS 8.0. EPSS: 1.5% chance of exploitation in the next 30 days.

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiOS version 6.0.0 through 6.0.14, FortiOS version 6.2.0 through 6.2.10, FortiOS version 6.4.0 through 6.4.8, FortiOS version 7.0.0 through 7.0.3 allows attacker to execute privileged commands on a linked FortiSwitch via diagnostic CLI commands.

Affected products

• Fortinet FortiOS: from 6.0.0, up to and including 6.0.14; from 6.2.0, up to and including 6.2.10; from 6.4.0, up to and including 6.4.8; from 7.0.0, up to and including 7.0.3

Published 2022-10-10. Last modified 2026-06-17.