{"id":"CVE-2020-17085","aliases":["EUVD-2020-9040","GHSA-mj56-6jxg-8vw7"],"status":"published","title":"Microsoft Exchange Server Denial of Service Vulnerability","description":"Microsoft Exchange Server Denial of Service Vulnerability","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.03633,"percentile":0.89694,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2020-11-11T06:48:32Z","modified":"2026-06-17T02:58:38Z","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 17"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 18"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 6"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 7"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17085","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17085"},{"url":"https://github.com/advisories/GHSA-mj56-6jxg-8vw7"}],"sources":{"cve":[{"id":"CVE-2020-17085","title":"Microsoft Exchange Server Denial of Service Vulnerability","description":"Microsoft Exchange Server Denial of Service Vulnerability","status":"published","published":"2020-11-11T06:48:32Z","modified":"2024-11-15T16:10:15.12Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-9040","description":"Microsoft Exchange Server Denial of Service Vulnerability","status":"published","published":"2020-11-11T06:48:32Z","modified":"2024-11-15T16:10:15Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:04:59.542658Z"}],"ghsa":[{"id":"GHSA-mj56-6jxg-8vw7","title":"Microsoft Exchange Server Denial of Service Vulnerability","description":"Microsoft Exchange Server Denial of Service Vulnerability","status":"published","published":"2022-05-24T17:33:52Z","modified":"2024-01-09T05:05:06Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:55:22.44362Z"}],"nvd":[{"id":"CVE-2020-17085","description":"Microsoft Exchange Server Denial of Service Vulnerability","status":"published","published":"2020-11-11T07:15:18.84Z","modified":"2026-06-17T02:58:38.853Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:24.137599Z"}]}}