CVE-2017-8509: Microsoft Office

High severity, CVSS 8.8. EPSS: 18.2% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8510, CVE-2017-8511, CVE-2017-8512, CVE-2017-0260, and CVE-2017-8506.

Affected products

• Microsoft Office: version 2007 only; version 2010 only; version 2013 only; version 2016 only
• Microsoft Office Compatibility Pack: affected versions not specified
• Microsoft Office Web Apps: version 2010 only
• Microsoft Office Web Apps Server: version 2013 only
• Microsoft Onenote: version 2010 only
• Microsoft SharePoint Server: version 2010 only; version 2013 only; version 2016 only
• Microsoft Word: version 2007 only; version 2010 only; version 2013 only; version 2016 only
• Microsoft Word For Mac: version 2016 only

Published 2017-06-15. Last modified 2026-06-17.