CVE-2025-59719 CRITICAL

CVE-2025-59719

Vendor Fortinet
Product FortiWeb
Weakness CWE-347
Published December 9, 2025
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

What the vulnerability does

01Description

An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticated attacker to bypass the FortiCloud SSO login authentication via a crafted SAML response message.

Key dates

02Disclosure timeline

December 9, 2025 CVE published
June 9, 2026 Record updated