{"id":"CVE-2021-24085","aliases":["EUVD-2021-11001","GHSA-2rhv-qrh4-ppvg"],"status":"published","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Microsoft Exchange Server Spoofing Vulnerability","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.04627,"percentile":0.91831,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2021-02-25T23:01:45Z","modified":"2026-06-17T03:39:15Z","exploits":[{"source":"pocgithub","id":"sourceincite/CVE-2021-24085","title":"sourceincite/CVE-2021-24085","date":"2021-02-15","url":"https://github.com/sourceincite/CVE-2021-24085"}],"products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 18"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 19"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 7"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 8"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24085","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-24085"},{"url":"https://github.com/advisories/GHSA-2rhv-qrh4-ppvg"}],"sources":{"cve":[{"id":"CVE-2021-24085","title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2021-02-25T23:01:45Z","modified":"2024-08-03T19:21:17.786Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:05.000797Z"}],"euvd":[{"id":"EUVD-2021-11001","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2021-02-25T23:01:45Z","modified":"2024-08-03T19:21:17Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T03:24:59.661237Z"}],"ghsa":[{"id":"GHSA-2rhv-qrh4-ppvg","title":"Microsoft Exchange Server Spoofing Vulnerability This CVE ID is unique from CVE-2021-1730.","description":"Microsoft Exchange Server Spoofing Vulnerability This CVE ID is unique from CVE-2021-1730.","status":"published","published":"2022-05-24T17:43:16Z","modified":"2024-01-07T05:05:39Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T14:55:21.414754Z"}],"nvd":[{"id":"CVE-2021-24085","description":"Microsoft Exchange Server Spoofing Vulnerability","status":"published","published":"2021-02-25T23:15:15.243Z","modified":"2026-06-17T03:39:15.743Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":6,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:50.399901Z"}]}}