CVE-2023-21717: Microsoft SharePoint Enterprise Server

High severity, CVSS 8.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Microsoft SharePoint Server Elevation of Privilege Vulnerability

Affected products

• Microsoft SharePoint Enterprise Server: version 2013 only; version 2016 only
• Microsoft SharePoint Foundation: version 2013 only
• Microsoft SharePoint Server: affected versions not specified; version 2019 only

Published 2023-02-14. Last modified 2026-08-19.