CVE-2023-47539: Fortinet FortiMail

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.

Affected products

Published 2025-03-18. Last modified 2026-06-17.