CVE-2021-43899: Microsoft Wireless Display Adapter Firmware

Critical severity, CVSS 9.8. EPSS: 2.6% chance of exploitation in the next 30 days.

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability

Affected products

• Microsoft Wireless Display Adapter Firmware: before 3.9520.47 (fixed in 3.9520.47)

Published 2021-12-15. Last modified 2026-06-17.