{"id":"CVE-2026-20951","published":"2026-01-13T17:56:47Z","modified":"2026-07-30T20:47:04Z","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","tier":"tail","description":{"text":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","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","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.00794,"percentile":0.56268,"provenance":"source"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20951","tags":["vendor-advisory","patch"]}],"priority":{"score":16.7,"factors":[{"name":"EPSS percentile","points":11.25},{"name":"CVSS severity","points":5.46}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","versions":[">= 16.0.0, < 16.0.5535.1001"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","versions":[">= 16.0.0, < 16.0.10417.20083"]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server Subscription Edition","versions":[">= 16.0.0, < 16.0.19127.20442"]}],"euvd":{"id":"EUVD-2026-2131","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-sharepoint-cwe-20"}}