CVE-2018-8430: Microsoft Office

High severity, CVSS 7.8. EPSS: 23% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in Microsoft Word if a user opens a specially crafted PDF file, aka "Word PDF Remote Code Execution Vulnerability." This affects Microsoft Word, Microsoft Office.

Affected products

• Microsoft Office: version 2013 only; version 2016 only
• Microsoft Word: version 2016 only

Published 2018-09-13. Last modified 2026-06-17.