CVE-2018-1352: Fortinet FortiOS

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A format string vulnerability in Fortinet FortiOS 5.6.0 allows attacker to execute unauthorized code or commands via the SSH username variable.

Affected products

• Fortinet FortiOS: version 5.6.0 only

Published 2019-02-08. Last modified 2026-06-17.