CVE-2026-22153

high

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.

References

https://github.com/glitchhawks/CVE-2026-22153

https://github.com/washingtonmaister/CVE-2026-22153-exp

https://www.securityweek.com/fortinet-patches-high-severity-vulnerabilities/

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

Details

Source: Mitre, NVD

Published: 2026-02-10

Updated: 2026-02-12

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.1

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

Severity: High

EPSS

EPSS: 0.00067