{"id":"CVE-2021-43204","aliases":["EUVD-2021-30148","GHSA-fqqh-g3vm-m5g2"],"status":"published","title":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4...","description":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00356,"percentile":0.2971,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-12-09T09:04:29Z","modified":"2026-06-17T04:10:38Z","products":[{"vendor":"fortinet","product":"forticlient"},{"vendor":"fortinet","product":"fortinet forticlientwindows"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-21-167","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43204"},{"url":"https://github.com/advisories/GHSA-fqqh-g3vm-m5g2"}],"sources":{"cve":[{"id":"CVE-2021-43204","description":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.","status":"published","published":"2021-12-09T09:04:29Z","modified":"2024-10-25T13:37:53.823Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30148","description":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.","status":"published","published":"2021-12-09T09:04:29Z","modified":"2024-10-25T13:37:53Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:05:19.027476Z"}],"ghsa":[{"id":"GHSA-fqqh-g3vm-m5g2","title":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4...","description":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.","status":"published","published":"2021-12-10T00:00:47Z","modified":"2023-02-01T05:07:00Z","updated_at":"2026-11-02T14:50:27.906349Z"}],"nvd":[{"id":"CVE-2021-43204","description":"A improper control of a resource through its lifetime in Fortinet FortiClientWindows version 6.4.1 and 6.4.0, version 6.2.9 and below, version 6.0.10 and below allows attacker to cause a complete denial of service of its components via changes of directory access permissions.","status":"published","published":"2021-12-09T09:15:07.08Z","modified":"2026-06-17T04:10:38.327Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:02.189991Z"}]}}