{"id":"CVE-2021-28482","aliases":["EUVD-2021-15160","GHSA-5w74-wv2v-34cm"],"status":"published","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.83214,"percentile":0.9968,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2021-04-13T19:33:47Z","modified":"2026-06-17T03:46:26Z","exploits":[{"source":"pocgithub","id":"KevinWorst/CVE-2021-28482_Exploit","title":"KevinWorst/CVE-2021-28482_Exploit","date":"2021-05-21","url":"https://github.com/KevinWorst/CVE-2021-28482_Exploit"},{"source":"pocgithub","id":"Shadow0ps/CVE-2021-28482-Exchange-POC","title":"Shadow0ps/CVE-2021-28482-Exchange-POC","date":"2021-05-03","url":"https://github.com/Shadow0ps/CVE-2021-28482-Exchange-POC"},{"source":"pocgithub","id":"timb-machine-mirrors/testanull-CVE-2021-28482.py","title":"timb-machine-mirrors/testanull-CVE-2021-28482.py","date":"2022-01-05","url":"https://github.com/timb-machine-mirrors/testanull-CVE-2021-28482.py"}],"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 19"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 20"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 8"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 9"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28482","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28482"},{"url":"https://github.com/advisories/GHSA-5w74-wv2v-34cm"}],"sources":{"cve":[{"id":"CVE-2021-28482","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","status":"published","published":"2021-04-13T19:33:47Z","modified":"2024-08-03T21:47:31.825Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:09.175141Z"}],"euvd":[{"id":"EUVD-2021-15160","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","status":"published","published":"2021-04-13T19:33:47Z","modified":"2024-08-03T21:47:31Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:24:46.751124Z"}],"ghsa":[{"id":"GHSA-5w74-wv2v-34cm","title":"Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021...","description":"Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28483.","status":"published","published":"2022-05-24T17:47:28Z","modified":"2023-12-29T03:30:27Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:55:17.557989Z"}],"nvd":[{"id":"CVE-2021-28482","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","status":"published","published":"2021-04-13T20:15:21.577Z","modified":"2026-06-17T03:46:26.697Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:51.610648Z"}]}}