CVE-2021-38644: Microsoft Mpeg-2 Video Extension

High severity, CVSS 7.8. EPSS: 2.3% chance of exploitation in the next 30 days.

Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

Affected products

• Microsoft Mpeg-2 Video Extension: before 1.0.42152.0 (fixed in 1.0.42152.0)

Published 2021-09-15. Last modified 2026-08-10.