BaseFortify

Publication date: 2025-12-09

Last updated on: 2026-06-09

Assigner: Fortinet, Inc.

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 Scores

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Meta Information

Published

2025-12-09

Last Modified

2026-06-09

Generated

2026-07-06

AI Q&A

2025-12-09

EPSS Evaluated

2026-07-05

NVD

CVE-2025-59719

Affected Vendors & Products

Vendor	Product	Version / Range
fortinet	fortiweb	From 7.4.0 (inc) to 7.4.9 (inc)
fortinet	fortiweb	From 7.6.0 (inc) to 7.6.4 (inc)
fortinet	fortiweb	8.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-347	The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Attack-Flow Graph

Executive Summary

This vulnerability is an improper verification of cryptographic signatures in Fortinet FortiWeb versions 8.0.0, 7.6.0 through 7.6.4, and 7.4.0 through 7.4.9. It may allow an unauthenticated attacker to bypass the FortiCloud Single Sign-On (SSO) login authentication by using a crafted SAML response message.

Impact Analysis

An attacker exploiting this vulnerability could bypass the FortiCloud SSO login authentication without needing to be authenticated. This could lead to unauthorized access with potentially full control, impacting confidentiality, integrity, and availability of the affected system.

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