CVE-2021-43211 Explained : Impact and Mitigation

Windows 10 Update Assistant Elevation of Privilege Vulnerability was published by Microsoft on November 16, 2021.

Understanding CVE-2021-43211

This CVE involves an elevation of privilege vulnerability in Windows 10 Update Assistant.

What is CVE-2021-43211?

The CVE-2021-43211 is an elevation of privilege vulnerability affecting Windows Update Assistant.

The Impact of CVE-2021-43211

Impact type: Elevation of Privilege.
Base Score: 5.5 (Medium Severity)
Attack Vector: Local (AV:L)
Attack Complexity: Low (AC:L)
Privileges Required: Low (PR:L)
User Interaction: None (UI:N)
Scope: Unchanged (S:U)
Confidentiality: None (C:N)
Integrity: None (I:N)
Availability: High (A:H)
Exploitability: Unproven (E:U)
Remediation Level: Official Fix (RL:O)
Report Confidence: Confirmed (RC:C)

Technical Details of CVE-2021-43211

This section provides specific technical details regarding the vulnerability.

Vulnerability Description

Elevation of privilege vulnerability in Windows 10 Update Assistant

Affected Systems and Versions

Vendor: Microsoft
Product: Windows Update Assistant
Platform: Unknown
Versions affected: 10.0.0

Exploitation Mechanism

Detailed information on the exploitation mechanism is not provided.

Mitigation and Prevention

Following are the steps to mitigate and prevent potential exploitation.

Immediate Steps to Take

Apply official security patches from Microsoft.
Monitor Microsoft's security guidance for updates.

Long-Term Security Practices

Regularly update Windows and related software.
Implement least privilege access controls.

Patching and Updates

Regularly check for updates and apply patches promptly.