CVE-2023-30803: Sangfor Next-Gen Application Firewall

Critical severity, CVSS 9.8. EPSS: 18.2% chance of exploitation in the next 30 days.

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can bypass authentication and access administrative functionality by sending HTTP requests using a crafted Y-forwarded-for header.

Affected products

• Sangfor Next-Gen Application Firewall: version 8.0.17 only

Published 2023-10-10. Last modified 2026-06-17.