cve detail

CVE-2025-59718

naam

Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability

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.

KEV

bekend misbruikt

EPSS

8,2%

percentiel

92%

vendor

Fortinet

product

Multiple Products

toegevoegd aan KEV

16 dec 2025

due date

23 dec 2025

ransomware

Unknown

CWE

CWE-347

EPSS datum

12 mei 2026

aanbevolen actie

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

notities

https://fortiguard.fortinet.com/psirt/FG-IR-25-647 ; https://docs.fortinet.com/upgrade-tool/fortigate ; https://nvd.nist.gov/vuln/detail/CVE-2025-59718