CVE-2025-59718
CISA KEV
ACT NOW
Priority: 0.00
BB Relevance:
10/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
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.
CISA Known Exploited Vulnerability
Vendor / Product
Fortinet — Multiple Products
Date Added
2025-12-16
Remediation Due
2025-12-23
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