{"id":"CVE-2022-21978","aliases":["EUVD-2022-27133","GHSA-72rg-xpq2-2j8c"],"status":"published","title":"Microsoft Exchange Server Elevation of Privilege Vulnerability","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00871,"percentile":0.59138,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-05-10T20:33:14Z","modified":"2026-06-17T04:27:23Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2013 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 22"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 11"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 12"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21978","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21978","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21978"},{"url":"https://github.com/advisories/GHSA-72rg-xpq2-2j8c"}],"sources":{"cve":[{"id":"CVE-2022-21978","title":"Microsoft Exchange Server Elevation of Privilege Vulnerability","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability","status":"published","published":"2022-05-10T20:33:14Z","modified":"2025-01-02T18:58:25.947Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-27133","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability","status":"published","published":"2022-05-10T20:33:14Z","modified":"2025-01-02T18:58:25Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:04:27.955488Z"}],"ghsa":[{"id":"GHSA-72rg-xpq2-2j8c","title":"Microsoft Exchange Server Elevation of Privilege Vulnerability.","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability.","status":"published","published":"2022-05-11T00:01:03Z","modified":"2025-01-02T21:31:32Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:59:20.17728Z"}],"nvd":[{"id":"CVE-2022-21978","description":"Microsoft Exchange Server Elevation of Privilege Vulnerability","status":"published","published":"2022-05-10T21:15:09.3Z","modified":"2026-06-17T04:27:23.847Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:19.51203Z"}]}}