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Known vulnerabilities in Fortinet FortiAuthenticator

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CVE Summary Score Published
CVE-2025-53379 A out-of-bounds read vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.2, FortiAuthenticator 6.5 all… 7.0 High Jul 14, 2026
CVE-2026-44277 A improper access control vulnerability in Fortinet FortiAuthenticator 8.0.2, FortiAuthenticator 8.0.0,… 9.1 Critical May 12, 2026
CVE-2026-21743 A missing authorization vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5 all… 6.8 Medium Feb 10, 2026
CVE-2025-59923 An improper access control vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6, FortiAuthenticator 6.5… 2.6 Low Dec 9, 2025
CVE-2025-57823 A direct request ('forced browsing') vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.6,… 2.6 Low Dec 9, 2025
CVE-2022-23439 A externally controlled reference to a resource in another sphere vulnerability in Fortinet allows attacker to poison… 4.1 Medium Jan 22, 2025
CVE-2024-23664 A URL redirection to untrusted site ('open redirect') in Fortinet FortiAuthenticator version 6.6.0, version 6.5.3 and… 5.8 Medium Jun 3, 2024
CVE-2022-22302 A clear text storage of sensitive information (CWE-312) vulnerability in both FortiGate version 6.4.0 through 6.4.1,… 5.3 Medium Jul 11, 2023
CVE-2022-35850 An improper neutralization of script-related HTML tags in a web page vulnerability [CWE-80] in FortiAuthenticator… 4.2 Medium Apr 11, 2023
CVE-2023-26208 A improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiAuthenticator 6.4.x… 3.5 Low Mar 9, 2023
CVE-2021-24005 Usage of hard-coded cryptographic keys to encrypt configuration files and debug logs in FortiAuthenticator versions… 4.0 Medium Jul 6, 2021

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