{"id":"CVE-2021-22128","aliases":["EUVD-2021-9284","GHSA-mm5g-p9fc-43hm"],"status":"published","title":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below...","description":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01036,"percentile":0.64173,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-03-04T17:27:43Z","modified":"2026-06-17T03:36:39Z","products":[{"vendor":"fortinet","product":"fortinet fortiproxy"},{"vendor":"fortinet","product":"fortiproxy"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-20-235","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22128"},{"url":"https://github.com/advisories/GHSA-mm5g-p9fc-43hm"}],"sources":{"cve":[{"id":"CVE-2021-22128","description":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.","status":"published","published":"2021-03-04T17:27:43Z","modified":"2024-10-25T13:59:55.356Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-9284","description":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.","status":"published","published":"2021-03-04T17:27:43Z","modified":"2024-10-25T13:59:55Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:05:18.633679Z"}],"ghsa":[{"id":"GHSA-mm5g-p9fc-43hm","title":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below...","description":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.","status":"published","published":"2022-05-24T17:43:38Z","modified":"2023-01-27T05:02:35Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:42:04.146384Z"}],"nvd":[{"id":"CVE-2021-22128","description":"An improper access control vulnerability in FortiProxy SSL VPN portal 2.0.0, 1.2.9 and below versions may allow an authenticated, remote attacker to access internal service such as the ZebOS Shell on the FortiProxy appliance through the Quick Connection functionality.","status":"published","published":"2021-03-04T18:15:13.13Z","modified":"2026-06-17T03:36:39.92Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}