CVE-2025-59718
KEVFortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
View CVE record →- Vendor / Project
- Fortinet
- Product
- Multiple Products
- Date added
- Dec 16, 2025
- Due date
- Dec 23, 2025
- Known ransomware use
- Unknown
- CWEs
- CWE-347
Description
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. Please be aware that CVE-2025-59719 pertains to the same problem and is mentioned in the same vendor advisory. Ensure to apply all patches mentioned in the advisory.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.