CVE-2021-41339 : Exploit Details and Defense Strategies

Microsoft DWM Core Library Elevation of Privilege Vulnerability was published on October 13, 2021, with a CVSS base score of 4.7.

Understanding CVE-2021-41339

This CVE is related to an Elevation of Privilege vulnerability in the Microsoft DWM Core Library.

What is CVE-2021-41339?

The CVE-2021-41339 is an Elevation of Privilege vulnerability affecting various Microsoft Windows operating systems.

The Impact of CVE-2021-41339

This vulnerability has a base severity rating of MEDIUM, with a base score of 4.7 on the CVSS scale.

Technical Details of CVE-2021-41339

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability relates to an Elevation of Privilege issue in the Microsoft DWM Core Library.

Affected Systems and Versions

Windows 10 Version 1909 (10.0.18363.1854)
Windows 10 Version 21H1 (10.0.19043.1288)
Windows Server 2022 (10.0.20348.288)
Windows 10 Version 2004 (10.0.19041.1288)
Windows Server version 2004 (10.0.19041.1288)
Windows 10 Version 20H2 (10.0.19042.1288)
Windows Server version 20H2 (10.0.19042.1288)
Windows 11 version 21H2 (10.0.22000.258)

Exploitation Mechanism

The vulnerability can allow an attacker to elevate privileges on the affected systems.

Mitigation and Prevention

Steps to help mitigate and prevent exploitation of the CVE-2021-41339 vulnerability.

Immediate Steps to Take

Apply the necessary security updates from Microsoft.
Implement the principle of least privilege.
Monitor system activity for any unauthorized actions.

Long-Term Security Practices

Regularly update and patch systems to the latest versions.
Conduct security assessments and penetration testing.

Patching and Updates

Microsoft has released security updates to address the vulnerability.