Vulnerability Details CVE-2026-21743
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.3%
CVSS Severity
CVSS v3 Score 7.2
Products affected by CVE-2026-21743
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cpe:2.3:a:fortinet:fortiauthenticator:6.3.0
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cpe:2.3:a:fortinet:fortiauthenticator:6.3.1
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cpe:2.3:a:fortinet:fortiauthenticator:6.3.2
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cpe:2.3:a:fortinet:fortiauthenticator:6.3.3
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cpe:2.3:a:fortinet:fortiauthenticator:6.3.4
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.0
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.1
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.10
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.2
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.3
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.4
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.5
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.6
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.7
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.8
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cpe:2.3:a:fortinet:fortiauthenticator:6.4.9
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.0
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.1
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.2
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.3
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.4
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.5
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cpe:2.3:a:fortinet:fortiauthenticator:6.5.6
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.0
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.1
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.2
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.3
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.4
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.5
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cpe:2.3:a:fortinet:fortiauthenticator:6.6.6