CVE-2025-59718 1

Vulnerability (CVE)

CVE-2025-59718: Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

Known Exploited Vulnerabilities CISA KEV Catalog Dec 16, 2025

Fortinet FortiOS, FortiSwitchMaster, FortiProxy, and FortiWeb contain an improper verification of cryptographic signature vulnerability that may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML message....

Vulnerabilities & Patching