CVE-2018-8635: Microsoft SharePoint Enterprise Server

High severity, CVSS 8.8. EPSS: 6.1% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted authentication request to an affected SharePoint server, aka "Microsoft SharePoint Server Elevation of Privilege Vulnerability." This affects Microsoft SharePoint Server, Microsoft SharePoint.

Affected products

• Microsoft SharePoint Enterprise Server: version 2013 only; version 2016 only
• Microsoft SharePoint Server: version 2010 only

Published 2018-12-12. Last modified 2026-06-17.