CVE-2021-41530: Forcepoint Next Generation Firewall

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Forcepoint NGFW Engine versions 6.5.11 and earlier, 6.8.6 and earlier, and 6.10.0 are vulnerable to TCP reflected amplification vulnerability, if HTTP User Response has been configured.

Affected products

• Forcepoint Next Generation Firewall: up to and including 6.5.11; from 6.8.0, up to and including 6.8.6; version 6.10.0 only

Published 2021-10-04. Last modified 2026-06-17.