CVE-2021-28474: Microsoft SharePoint Foundation

High severity, CVSS 8.8. EPSS: 50.8% chance of exploitation in the next 30 days.

Microsoft SharePoint Server Remote Code Execution Vulnerability

Affected products

• Microsoft SharePoint Foundation: version 2013 only
• Microsoft SharePoint Server: version 2016 only; version 2019 only

Published 2021-05-11. Last modified 2026-06-17.