What is CVE-2026-22153?

CVE-2026-22153 is a high-severity vulnerability in Fortinet Fortios, classified under Authentication Bypass by Primary Weakness. CVSS score: 8.1/10. Published 2026-02-10.

How severe is CVE-2026-22153?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Fortinet Fortios

CVE-2026-22153

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…

EPSS: 0.007 (48.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fortinet Fortios — versions 7.6.0

Weakness classification (CWE)

CWE-305 — Authentication Bypass by Primary Weakness

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-22153?: CVE-2026-22153 is a high-severity vulnerability in Fortinet Fortios, classified under Authentication Bypass by Primary Weakness. CVSS score: 8.1/10. Published 2026-02-10.
How severe is CVE-2026-22153?: High severity. CVSS v3 base score is 8.1 out of 10.