CVE-2026-70343: Microsoft Mpeg-2 Video Extension

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an unauthorized attacker to execute code over a network.

Affected products

• Microsoft Mpeg-2 Video Extension: from 1.0.0.0, before 1.2.32.0 (fixed in 1.2.32.0)

Published 2026-10-13. Last modified 2026-10-13.