CVE-2025-59719

CRITICAL EPSS 97.5%

Published Dec 9, 20256mo ago · Modified Jun 17, 20261w ago

9.8 CVSS 3.1

Critical

Published Dec 9, 2025 6mo ago

Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

97.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-347

Affected Products 3

Vendor	Product	Version	Range
fortinet	fortiweb	*	≥7.4.0 – ≤7.4.9
fortinet	fortiweb	*	≥7.6.0 – ≤7.6.4
fortinet	fortiweb	8.0.0	any

References 2

cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-864900.html
fortiguard.fortinet.com https://fortiguard.fortinet.com/psirt/FG-IR-25-647

Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.