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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.

PUBLISHED Reserved 2026-01-05 | Published 2026-02-10 | Updated 2026-02-12 | Assigner fortinet




MEDIUM: 6.8CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C

Problem types

Improper access control

Product status

Default status
unaffected

6.6.0 (semver)
affected

6.5.0 (semver)
affected

6.4.0 (semver)
affected

6.3.0 (semver)
affected

References

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

cve.org (CVE-2026-21743)

nvd.nist.gov (CVE-2026-21743)

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