CVE-2019-17659: Fortinet Fortisiem

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

A use of hard-coded cryptographic key vulnerability in FortiSIEM version 5.2.6 may allow a remote unauthenticated attacker to obtain SSH access to the supervisor as the restricted user "tunneluser" by leveraging knowledge of the private key from another installation or a firmware image.

Affected products

• Fortinet Fortisiem: before 5.2.7 (fixed in 5.2.7)

Published 2025-03-17. Last modified 2026-06-17.