CVE-2025-59719
An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
- Published Dec 9, 2025
- CVSS 9.8 critical
- 29.2% chance of exploitation in the next 30 days (EPSS)
Affected software
In the news
- FortiCloud SSO Login Bypass Vulnerabilities Exploited in the Wild VulnCheck Blog ·