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9.8

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability

CVE-2021-43899 · published 4 years ago
Summary

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability

What to do
  • Update microsoft wireless_display_adapter_firmware to version 3.9520.47 or later.
Affected software
VendorProductAffected versions
microsoft wireless_display_adapter_firmware < 3.9520.47
cpe:2.3:o:microsoft:wireless_display_adapter_firmware:*:*:*:*:*:*:*:*
Original advisory text
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker full control (estimated)
Severity
9.8 Critical
Exploitation
3% chance of attack within 30 days
Timeline
Published15 Dec 2021
Updated30 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-43899 · NVD
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