CVE-2021-43899
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
- Record
CVE-2021-43899- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-30761
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
- Record
EUVD-2021-30761- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9vc3-gg5p-544w
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
- Record
GHSA-9vc3-gg5p-544w- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-94
- Updated
- 2026-11-02
NVD
Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability
- Record
CVE-2021-43899- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43899 is a critical vulnerability (CVSS 9.8) in Microsoft 4k Wireless Display Adapter, published December 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.59%, the 85th percentile. No source names a fixed version.