{"id":"CVE-2026-63520","title":"Microsoft SharePoint Server Remote Code Execution Vulnerability","summary":"Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-20"],"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","affected":["sharepoint_enterprise_server_2016 >= 16.0.0 < 16.0.5565.1001","sharepoint_server_2019 >= 16.0.0 < 16.0.10417.20198","sharepoint_server_subscription_edition >= 16.0.0 < 16.0.19725.20522"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-07T00:00:00+00:00"},"exploitAvailable":true,"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:22:48.746Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63520","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63520","label":"Microsoft SharePoint Server Remote Code Execution Vulnerability"}],"tags":["cve.org","exploit-available"],"epss":0.02893,"epssPercentile":0.86308,"exploits":{"github":1,"githubRepos":["https://github.com/hypnguyen1209/CVE-2026-63520"],"checkedAt":"2026-09-23T07:14:33.474Z"},"ingestedAt":"2026-09-08T18:07:34.903Z","slug":"CVE-2026-63520","body":"## Overview\n\nImproper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.\n\n## Affected\n\n- `sharepoint_enterprise_server_2016 >= 16.0.0 < 16.0.5565.1001`\n- `sharepoint_server_2019 >= 16.0.0 < 16.0.10417.20198`\n- `sharepoint_server_subscription_edition >= 16.0.0 < 16.0.19725.20522`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0.6,"exploitation":12,"ransomware":0},"changes":[]}