Fortinet FortiOS up to 7.4.7/7.6.1 certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Fortinet FortiOS up to 7.4.7/7.6.1. This issue affects some unknown processing. Executing a manipulation can lead to certificate validation. This vulnerability is registered as CVE-2025-24471. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fortinet FortiOS up to 7.4.7/7.6.1. It has been declared as critical. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An Improper Certificate Validation vulnerability [CWE-295] in FortiOS version 7.6.1 and below, version 7.4.7 and below may allow an EAP verified remote user to connect from FortiClient via revoked certificate.

The advisory is shared for download at fortiguard.fortinet.com. This vulnerability was named CVE-2025-24471 since 01/21/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability scanner Nessus provides a plugin with the ID 238112 (Fortinet Fortigate eap-cert-auth bypass via revoked certificate (FG-IR-24-544)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (238112). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (fortinet): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 238112
Nessus Name: Fortinet Fortigate eap-cert-auth bypass via revoked certificate (FG-IR-24-544)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2025 🔍
06/10/2025 +139 days 🔍
06/10/2025 +0 days 🔍
07/23/2025 +42 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-24-544
Status: Confirmed

CVE: CVE-2025-24471 (🔍)
GCVE (CVE): GCVE-0-2025-24471
GCVE (VulDB): GCVE-100-311920

Entryinfo

Created: 06/10/2025 19:06
Updated: 07/23/2025 00:57
Changes: 06/10/2025 19:06 (64), 06/11/2025 18:30 (2), 07/23/2025 00:57 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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