{"id":"CVE-2026-45454","title":"Microsoft SharePoint Remote Code Execution Vulnerability","summary":"Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-22"],"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","affected":["sharepoint_enterprise_server_2016 >= 16.0.0 < 16.0.5556.1005","sharepoint_server_2019 >= 16.0.0 < 16.0.10417.20153","sharepoint_server_subscription_edition >= 16.0.0 < 16.0.19725.20384"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-10T03:56:58.087923Z"},"published":"2026-06-09","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:44:19.546Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45454","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45454","label":"Microsoft SharePoint Remote Code Execution Vulnerability"}],"tags":["cve.org"],"epss":0.0163,"epssPercentile":0.75181,"ingestedAt":"2026-09-24T14:44:21.403Z","slug":"CVE-2026-45454","body":"## Overview\n\nImproper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.\n\n## Affected\n\n- `sharepoint_enterprise_server_2016 >= 16.0.0 < 16.0.5556.1005`\n- `sharepoint_server_2019 >= 16.0.0 < 16.0.10417.20153`\n- `sharepoint_server_subscription_edition >= 16.0.0 < 16.0.19725.20384`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}