CVE-2018-0802: Microsoft Office Memory Corruption Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 93.3% chance of exploitation in the next 30 days.

Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE is unique from CVE-2018-0797 and CVE-2018-0812.

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 Word: version 2007 only; version 2010 only; version 2013 only; version 2016 only

Published 2018-01-10. Last modified 2026-06-17.