VULNERABILITY INTELLIGENCE
CVE-2025-59718
CVSS score9.8 CRITICAL
EPSS probability68.29%
CISA KEVKnown exploited vulnerability
Published2025-12-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Known Exploited Vulnerability
Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
Vendor / product: Fortinet / Multiple Products
Description
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy 7.4.0 through 7.4.10, FortiProxy 7.2.0 through 7.2.14, FortiProxy 7.0.0 through 7.0.21, FortiSwitchManager 7.2.0 through 7.2.6, FortiSwitchManager 7.0.0 through 7.0.5 allows an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.
Weakness classification
- psirt@fortinet.com: CWE-347
Primary references
- psirt@fortinet.com — Vendor Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Third Party Advisory
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e — Third Party Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource