{"id":"CVE-2020-16875","aliases":["EUVD-2020-8833","GHSA-5rg4-jqjp-6664"],"status":"published","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"\u003cp\u003eA remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.\u003c/p\u003e\n\u003cp\u003eAn attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. Exploitation of the vulnerability requires an authenticated user in a certain Exchange role to be compromised.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how Microsoft Exchange handles cmdlet arguments.\u003c/p\u003e","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.46497,"percentile":0.9883,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-269","CWE-74","CWE-94"],"published":"2020-09-11T17:08:47Z","modified":"2026-06-17T02:58:10Z","exploits":[{"source":"metasploit","id":"exploit/windows/http/exchange_ecp_dlp_policy","title":"Microsoft Exchange Server DlpUtils AddTenantDlpPolicy RCE","type":"exploit","platform":"Windows","date":"2021-01-12","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/http/exchange_ecp_dlp_policy"}],"products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 16"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 17"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 5"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 6"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16875","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/159210/Microsoft-Exchange-Server-DlpUtils-AddTenantDlpPolicy-Remote-Code-Execution.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16875"},{"url":"https://github.com/advisories/GHSA-5rg4-jqjp-6664"}],"sources":{"cve":[{"id":"CVE-2020-16875","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"\u003cp\u003eA remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.\u003c/p\u003e\n\u003cp\u003eAn attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. Exploitation of the vulnerability requires an authenticated user in a certain Exchange role to be compromised.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how Microsoft Exchange handles cmdlet arguments.\u003c/p\u003e","status":"published","published":"2020-09-11T17:08:47Z","modified":"2024-08-04T13:45:34.048Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:58.787905Z"}],"euvd":[{"id":"EUVD-2020-8833","description":"\u003cp\u003eA remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.\u003c/p\u003e\n\u003cp\u003eAn attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. Exploitation of the vulnerability requires an authenticated user in a certain Exchange role to be compromised.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how Microsoft Exchange handles cmdlet arguments.\u003c/p\u003e","status":"published","published":"2020-09-11T17:08:47Z","modified":"2024-08-04T13:45:34Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:07:28.222143Z"}],"ghsa":[{"id":"GHSA-5rg4-jqjp-6664","title":"A remote code execution vulnerability exists in Microsoft Exchange server due to improper...","description":"A remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user, aka 'Microsoft Exchange Server Remote Code Execution Vulnerability'.","status":"published","published":"2022-05-24T17:28:08Z","modified":"2024-01-01T00:30:40Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-74","CWE-94","CWE-269"],"updated_at":"2026-11-02T14:55:19.223338Z"}],"nvd":[{"id":"CVE-2020-16875","description":"\u003cp\u003eA remote code execution vulnerability exists in Microsoft Exchange server due to improper validation of cmdlet arguments.\u003c/p\u003e\n\u003cp\u003eAn attacker who successfully exploited the vulnerability could run arbitrary code in the context of the System user. Exploitation of the vulnerability requires an authenticated user in a certain Exchange role to be compromised.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how Microsoft Exchange handles cmdlet arguments.\u003c/p\u003e","status":"published","published":"2020-09-11T17:15:17.527Z","modified":"2026-06-17T02:58:10.64Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/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"}],"cwes":["CWE-74","CWE-269"],"updated_at":"2026-11-02T14:06:14.981587Z"}]}}