{"id":"CVE-2021-22941","aliases":["EUVD-2021-10070","GHSA-83fg-h4qw-7574"],"status":"published","title":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an...","description":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.53585,"percentile":0.99001,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-269","CWE-284"],"published":"2021-09-23T12:44:31Z","modified":"2026-06-17T03:38:04Z","kev":{"date_added":"2022-03-25","due_date":"2022-04-15","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2022-03-25"},{"source":"kev","since":"2022-03-25"}],"exploits":[{"source":"pocgithub","id":"hoav18/CVE-2021-22941","title":"hoav18/CVE-2021-22941","date":"2021-10-12","url":"https://github.com/hoav18/CVE-2021-22941"},{"source":"pocgithub","id":"pratikjojode/citrix-cve-2021-22941-lab","title":"pratikjojode/citrix-cve-2021-22941-lab","date":"2025-12-02","url":"https://github.com/pratikjojode/citrix-cve-2021-22941-lab"}],"products":[{"vendor":"citrix","product":"citrix sharefile storage zones controller"},{"vendor":"citrix","product":"sharefile"},{"vendor":"citrix","product":"sharefile_storagezones_controller"}],"references":[{"url":"https://support.citrix.com/article/CTX328123","tags":["x_refsource_MISC","x_transferred","Broken Link","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22941","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22941"},{"url":"https://github.com/advisories/GHSA-83fg-h4qw-7574"}],"sources":{"cve":[{"id":"CVE-2021-22941","description":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.","status":"published","published":"2021-09-23T12:44:31Z","modified":"2025-10-21T23:25:31.338Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-10070","description":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.","status":"published","published":"2021-09-23T12:44:31Z","modified":"2025-10-21T23:25:31Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2022-03-25","updated_at":"2026-11-02T20:31:25.901288Z"}],"ghsa":[{"id":"GHSA-83fg-h4qw-7574","title":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an...","description":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.","status":"published","published":"2022-05-24T19:15:35Z","modified":"2025-10-22T00:32:25Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-269","CWE-284"],"updated_at":"2026-11-02T15:04:05.344883Z"}],"kev":[{"id":"CVE-2021-22941","title":"Citrix ShareFile Improper Access Control Vulnerability","description":"Improper Access Control in Citrix ShareFile storage zones controller may allow an unauthenticated attacker to remotely compromise the storage zones controller.","cwes":["CWE-284"],"kev":{"date_added":"2022-03-25","due_date":"2022-04-15","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2021-22941","description":"Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.","status":"published","published":"2021-09-23T13:15:08.62Z","modified":"2026-06-17T03:38:04.35Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:06:58.933037Z"}]}}