BaseFortify

Publication date: 2025-12-09

Last updated on: 2026-06-09

Assigner: Fortinet, Inc.

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.

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-2025-59718

Affected Vendors & Products

Vendor	Product	Version / Range
siemens	ruggedcom_ape1808_firmware	*

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 certain versions of Fortinet FortiOS, FortiProxy, and FortiSwitchManager. It allows an unauthenticated attacker to bypass the FortiCloud Single Sign-On (SSO) login authentication by using a specially crafted SAML response message.

Impact Analysis

An attacker exploiting this vulnerability can bypass authentication without valid credentials, potentially gaining unauthorized access to systems protected by FortiCloud SSO. This can lead to full compromise of confidentiality, integrity, and availability of affected systems.

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