CVE-2026-21743

State: Published
Severity: 6.8 Medium
Published: Feb 10, 2026
Updated: Feb 12, 2026
Reserved: Jan 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.8 Medium	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	fortinet

Weaknesses

CWE-862 Improper access control

Affected Products

Product	Versions
FortiAuthenticatorFortinet	6.6.0 through 6.6.6Affected 6.5.0 through 6.5.7Affected 6.4.0 through 6.4.11Affected 6.3.0 through 6.3.5Affected

References

https://fortiguard.fortinet.com/psirt/FG-IR-25-528

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