{"id":"CVE-2021-36949","aliases":["EUVD-2021-23525","GHSA-55wf-38cw-5f72"],"status":"published","title":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","description":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01401,"percentile":0.72896,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-287"],"published":"2021-08-12T18:12:39Z","modified":"2026-08-10T18:31:00Z","exploits":[{"source":"pocgithub","id":"Maxwitat/Check-AAD-Connect-for-CVE-2021-36949-vulnerability","title":"Maxwitat/Check-AAD-Connect-for-CVE-2021-36949-vulnerability","date":"2021-08-14","url":"https://github.com/Maxwitat/Check-AAD-Connect-for-CVE-2021-36949-vulnerability"}],"products":[{"vendor":"microsoft","product":"azure active directory connect provisioning agent"},{"vendor":"microsoft","product":"azure_active_directory_connect"},{"vendor":"microsoft","product":"azure_active_directory_connect_provisioning_agent"},{"vendor":"microsoft","product":"microsoft azure active directory connect 1.x.y.z"},{"vendor":"microsoft","product":"microsoft azure active directory connect 2.0.x.y"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36949","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36949","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36949"},{"url":"https://github.com/advisories/GHSA-55wf-38cw-5f72"}],"sources":{"cve":[{"id":"CVE-2021-36949","title":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","description":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","status":"published","published":"2021-08-12T18:12:39Z","modified":"2026-08-10T15:10:09.48Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:05.989686Z"}],"euvd":[{"id":"EUVD-2021-23525","description":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","status":"published","published":"2021-08-12T18:12:39Z","modified":"2026-08-10T15:10:09Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:05.388264Z"}],"ghsa":[{"id":"GHSA-55wf-38cw-5f72","title":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","description":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","status":"published","published":"2022-05-24T19:10:50Z","modified":"2026-08-10T18:31:00Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:10:14.704025Z"}],"nvd":[{"id":"CVE-2021-36949","description":"Microsoft Azure Active Directory Connect Authentication Bypass Vulnerability","status":"published","published":"2021-08-12T18:15:10.227Z","modified":"2026-08-10T16:18:02.5Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.9,"vector":"AV:A/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:56.943671Z"}]}}