{"id":"CVE-2020-17123","aliases":["EUVD-2020-9078","GHSA-4q2p-8m3f-h868"],"status":"published","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Microsoft Excel Remote Code Execution Vulnerability","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.03587,"percentile":0.8957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-12-09T23:36:46Z","modified":"2026-06-17T02:58:43Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"excel"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft excel 2010 service pack 2"},{"vendor":"microsoft","product":"microsoft excel 2013 service pack 1"},{"vendor":"microsoft","product":"microsoft excel 2016"},{"vendor":"microsoft","product":"microsoft office 2019"},{"vendor":"microsoft","product":"microsoft office 2019 for mac"},{"vendor":"microsoft","product":"microsoft office web apps 2013 service pack 1"},{"vendor":"microsoft","product":"office online server"},{"vendor":"microsoft","product":"office_online_server"},{"vendor":"microsoft","product":"office_web_apps"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17123","tags":["vendor-advisory","patch"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17123","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-17123"},{"url":"https://github.com/advisories/GHSA-4q2p-8m3f-h868"}],"sources":{"cve":[{"id":"CVE-2020-17123","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Microsoft Excel Remote Code Execution Vulnerability","status":"published","published":"2020-12-09T23:36:46Z","modified":"2026-06-09T18:08:09.307Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2020-9078","description":"Microsoft Excel Remote Code Execution Vulnerability","status":"published","published":"2020-12-09T23:36:46Z","modified":"2026-06-09T18:08:09Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:20:47.241018Z"}],"ghsa":[{"id":"GHSA-4q2p-8m3f-h868","title":", aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020...","description":", aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-17122, CVE-2020-17125, CVE-2020-17127, CVE-2020-17128, CVE-2020-17129.","status":"published","published":"2022-05-24T17:35:53Z","modified":"2025-08-29T00:31:13Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:03:26.692558Z"}],"nvd":[{"id":"CVE-2020-17123","description":"Microsoft Excel Remote Code Execution Vulnerability","status":"published","published":"2020-12-10T00:15:14.857Z","modified":"2026-06-17T02:58:43.3Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:27.10541Z"}]}}