CVE-2026-22153

Name: CVE-2026-22153
Creator: NVD / NIST
Published: 2026-02-10T16:16:11.05+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2026-22153 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-305

Affected Software

Vendor	Product	Versions
Fortinet	Fortios	>= 7.6.0, < 7.6.5

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-1052Vendor Advisory

Timeline

Published: Feb 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-22153?

How severe is CVE-2026-22153?

CVE-2026-22153 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22153?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22153?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST