CVE-2021-33739 : Exploit Details and Defense Strategies

This article provides details about the Microsoft DWM Core Library Elevation of Privilege Vulnerability CVE-2021-33739 published on June 8, 2021, impacting various Windows versions.

Understanding CVE-2021-33739

This section delves into the vulnerability, its impact, technical details, affected systems, exploitation mechanism, mitigation steps, and preventive measures.

What is CVE-2021-33739?

The CVE-2021-33739 is an elevation of privilege vulnerability affecting Microsoft DWM Core Library.

The Impact of CVE-2021-33739

This vulnerability has a high severity level with a CVSS base score of 8.4, allowing attackers to elevate privileges on the affected systems.

Technical Details of CVE-2021-33739

This section provides technical insights into CVE-2021-33739.

Vulnerability Description

The vulnerability exists in the DWM Core Library of Windows, enabling unauthorized users to gain elevated privileges.

Affected Systems and Versions

The vulnerability impacts various Windows versions, including Windows 10 Version 1909, 21H1, 2004, 20H2, and corresponding Server versions.

Exploitation Mechanism

Attackers can exploit this vulnerability to escalate their privileges on the affected systems.

Mitigation and Prevention

This section outlines steps to mitigate and prevent exploitation of CVE-2021-33739.

Immediate Steps to Take

Update affected systems to the latest patched versions provided by Microsoft. Implement security best practices and monitor system activities.

Long-Term Security Practices

Regularly update and patch systems, deploy security solutions, conduct security audits, and educate users on safe computing practices.

Patching and Updates

Stay informed about security updates from Microsoft and apply patches promptly to secure systems against known vulnerabilities.