CVE-2021-31949: Microsoft 365 Apps

High severity, CVSS 7.3. EPSS: 2.6% chance of exploitation in the next 30 days.

Microsoft Outlook Remote Code Execution Vulnerability

Affected products

• Microsoft 365 Apps: affected versions not specified
• Microsoft Office: version 2019 only
• Microsoft Outlook: version 2013 only; version 2016 only

Published 2021-06-08. Last modified 2026-06-17.