{"id":"CVE-2021-36167","aliases":["EUVD-2021-22788","GHSA-2c7f-7v62-c4p8"],"status":"published","title":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6...","description":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:P/RL:X/RC:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00615,"percentile":0.49809,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-12-09T09:33:17Z","modified":"2026-06-17T03:58:27Z","products":[{"vendor":"fortinet","product":"forticlient"},{"vendor":"fortinet","product":"fortinet forticlientwindows"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-20-127","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36167"},{"url":"https://github.com/advisories/GHSA-2c7f-7v62-c4p8"}],"sources":{"cve":[{"id":"CVE-2021-36167","description":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.","status":"published","published":"2021-12-09T09:33:17Z","modified":"2024-10-25T13:37:00.435Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:P/RL:X/RC:X","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:05.989686Z"}],"euvd":[{"id":"EUVD-2021-22788","description":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.","status":"published","published":"2021-12-09T09:33:17Z","modified":"2024-10-25T13:37:00Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:P/RL:X/RC:X","level":"medium"}],"updated_at":"2026-11-03T00:05:19.027476Z"}],"ghsa":[{"id":"GHSA-2c7f-7v62-c4p8","title":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6...","description":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.","status":"published","published":"2021-12-10T00:00:47Z","modified":"2023-01-27T05:01:13Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:41:50.629165Z"}],"nvd":[{"id":"CVE-2021-36167","description":"An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.","status":"published","published":"2021-12-09T10:15:11.433Z","modified":"2026-06-17T03:58:27.037Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:02.189991Z"}]}}