{"id":"CVE-2026-20951","aliases":["EUVD-2026-2131","GHSA-gm7r-gh5f-5ghf"],"status":"published","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","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":"2026-11-10","score":0.00794,"percentile":0.56715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2026-01-13T17:56:47Z","modified":"2026-07-30T20:47:04Z","products":[{"vendor":"microsoft","product":"microsoft sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20951","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20951"},{"url":"https://github.com/advisories/GHSA-gm7r-gh5f-5ghf"}],"sources":{"cve":[{"id":"CVE-2026-20951","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T17:56:47.027Z","modified":"2026-07-30T20:47:04.915Z","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"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T13:35:55.731353Z"}],"euvd":[{"id":"EUVD-2026-2131","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T17:56:47Z","modified":"2026-07-30T20:47:04Z","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":"2026-11-02T18:02:27.233735Z"}],"ghsa":[{"id":"GHSA-gm7r-gh5f-5ghf","title":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to...","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T18:31:10Z","modified":"2026-01-13T18:31:18Z","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"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:05:35.156514Z"}],"nvd":[{"id":"CVE-2026-20951","description":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-01-13T18:16:22.833Z","modified":"2026-06-17T10:18:06.287Z","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"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:12:04.066712Z"}]}}