CVE-2026-22153
Analyzed Analyzed - Analysis Complete
Authentication Bypass in Fortinet FortiOS LDAP Agentless VPN

Publication date: 2026-02-10

Last updated on: 2026-02-12

Assigner: Fortinet, Inc.

Description
An Authentication Bypass by Primary Weakness vulnerability [CWE-305] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, when the remote LDAP server is configured in a specific way.
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Meta Information
Published
2026-02-10
Last Modified
2026-02-12
Generated
2026-06-16
AI Q&A
2026-02-10
EPSS Evaluated
2026-06-14
NVD
CVE-2026-22153
EUVD
EUVD-2026-6387
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
fortinet fortios From 7.6.0 (inc) to 7.6.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-305 The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
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Executive Summary

This vulnerability is an Authentication Bypass by Primary Weakness (CWE-305) found in Fortinet FortiOS versions 7.6.0 through 7.6.4. It may allow an unauthenticated attacker to bypass LDAP authentication for Agentless VPN or FSSO policy when the remote LDAP server is configured in a specific way.

Impact Analysis

An attacker exploiting this vulnerability could bypass LDAP authentication without valid credentials, potentially gaining unauthorized access to Agentless VPN or FSSO policies. This could lead to full compromise of confidentiality, integrity, and availability of affected systems.

Compliance Impact

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Detection Guidance

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