CVE-2026-21743
HIGHFortinet FortiAuthenticator 6.3.0-6.6.6 - Missing Authorization for Local User Modification via File Upload
Title source: llmDescription
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.
References (1)
Core 1
Core References
Vendor Advisory
https://fortiguard.fortinet.com/psirt/FG-IR-25-528
Scores
CVSS v3
7.2
EPSS
0.0002
EPSS Percentile
6.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-862
Status
published
Products (1)
fortinet/fortiauthenticator
6.3.0 - 6.6.7
Published
Feb 10, 2026
Tracked Since
Feb 18, 2026