What is the CVSS score of CVE-2021-43899?

CVE-2021-43899 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.4%.

Is there a patch available for CVE-2021-43899?

Yes, a patch is available for CVE-2021-43899. Update the affected software to the latest version immediately.

Wireless Display Adapter Firmware CVE-2021-43899

CRITICAL

2021-12-15 secure@microsoft.com

Microsoft RCE Wireless Display Adapter Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 15, 2021 - 15:15 nvd

CRITICAL 9.8

DescriptionNVD

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability

AnalysisAI

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability Affected products include: Microsoft Wireless Display Adapter Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.