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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Fortinet
  • Fortiauthenticator

No data.

No data.

References
Link Providers
https://www.spirityenterprise.com/mdr-for-endpoint spirity
https://fortiguard.fortinet.com/psirt/FG-IR-25-528 cve-icon cve-icon
History

Tue, 10 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 10 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
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.
First Time appeared Fortinet
Fortinet fortiauthenticator
Weaknesses CWE-862
CPEs cpe:2.3:a:fortinet:fortiauthenticator:6.3.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.3.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.3.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.3.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.3.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.3.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.11:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.4.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.6:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortiauthenticator
References
Metrics cvssV3_1

{'score': 6.8, '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-02-10T16:26:12.930Z

Reserved: 2026-01-05T14:17:53.224Z

Link: CVE-2026-21743

cve-icon Vulnrichment

Updated: 2026-02-10T16:26:10.477Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-10T16:16:10.903

Modified: 2026-02-10T21:51:48.077

Link: CVE-2026-21743

cve-icon Redhat

No data.