CVE-2021-27076

Microsoft SharePoint Server Remote Code Execution Vulnerability

Score

CVSS 3.1 8.8 High

Status

Modified - secure@microsoft.com

Published

2021-03-11

Last modified

2026-08-19

Affected products

• Business Productivity Servers (Microsoft)
• Sharepoint Foundation (Microsoft)
• Sharepoint Foundation 2013 (Microsoft)
• Sharepoint Server (Microsoft)
• Sharepoint Server 2016 (Microsoft)
• Sharepoint Server 2019 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27076
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076
• https://www.zerodayinitiative.com/advisories/ZDI-21-276/