CVE-2021-33601: F-Secure Internet Gatekeeper

High severity, CVSS 8.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A vulnerability was discovered in the web user interface of F-Secure Internet Gatekeeper. An authenticated user can modify settings through the web user interface in a way that could lead to an arbitrary code execution on the F-Secure Internet Gatekeeper server.

Affected products

• F-Secure Internet Gatekeeper: from 5.10, up to and including 5.50.47

Published 2021-09-28. Last modified 2026-06-17.