CVE-2023-33133: Microsoft 365 Apps

High severity, CVSS 7.8. EPSS: 44% chance of exploitation in the next 30 days.

Microsoft Excel Remote Code Execution Vulnerability

Affected products

• Microsoft 365 Apps: affected versions not specified
• Microsoft Excel: version 2013 only; version 2016 only
• Microsoft Office Long Term Servicing Channel: version 2021 only
• Microsoft Office Online Server: affected versions not specified

Published 2023-06-14. Last modified 2026-06-17.