CVE-2026-21743 MEDIUM

CVE-2026-21743

Vendor Fortinet
Product FortiAuthenticator
Weakness CWE-862 · Missing authorization
Published February 10, 2026
Last update February 12, 2026
View on NVD All CVEs

CVSS base score

6.8/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C

What the vulnerability does

01Description

A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all versions, FortiAuthenticator 6.4 all versions, FortiAuthenticator 6.3 all versions may allow a read-only user to make modification to local users via a file upload to an unprotected endpoint.

Key dates

02Disclosure timeline

February 10, 2026 CVE published
February 12, 2026 Record updated