{"id":"CVE-2020-12812","details":"An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.","modified":"2026-05-04T08:24:50.272817Z","published":"2020-07-24T23:15:12.003Z","withdrawn":"2026-05-04T08:24:50.272817Z","references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12812"},{"type":"ADVISORY","url":"https://fortiguard.com/psirt/FG-IR-19-283"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"6.0.10"}]},{"events":[{"introduced":"6.2.0"},{"fixed":"6.2.4"}]},{"events":[{"introduced":"0"},{"last_affected":"6.4.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12812.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}