CVE-2022-21840: Microsoft Excel

High severity, CVSS 8.8. EPSS: 3.1% chance of exploitation in the next 30 days.

Microsoft Office Remote Code Execution Vulnerability

Affected products

• Microsoft Excel: version 2013 only; version 2016 only
• Microsoft Office: version 2013 only; version 2016 only; version 2019 only
• Microsoft Office Long Term Servicing Channel: version 2021 only
• Microsoft Office Online Server: affected versions not specified
• Microsoft Office Web Apps: version 2013 only
• Microsoft SharePoint Enterprise Server: version 2013 only
• Microsoft SharePoint Server: affected versions not specified; version 2013 only; version 2016 only; version 2019 only

Published 2022-01-11. Last modified 2026-06-17.