CVE-2020-1238: Microsoft Windows 10

High severity, CVSS 8.8. EPSS: 7% chance of exploitation in the next 30 days.

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory, aka 'Media Foundation Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-1239.

Affected products

• Microsoft Windows 10: version 1709 only; version 1803 only; version 1809 only; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2016: version 1803 only; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2020-06-09. Last modified 2026-06-17.