CVE-2021-41340 : What You Need to Know

Windows Graphics Component Remote Code Execution Vulnerability was published by Microsoft on October 13, 2021. The vulnerability affects various Windows versions.

Understanding CVE-2021-41340

What is CVE-2021-41340?

The CVE-2021-41340 is a Remote Code Execution vulnerability affecting Windows Graphics Component.

The Impact of CVE-2021-41340

The impact is categorized as Remote Code Execution with a CVSS base score of 7.8 (High).

Technical Details of CVE-2021-41340

Vulnerability Description

The vulnerability allows attackers to execute arbitrary code remotely.

Affected Systems and Versions

Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation)
Windows 10 Version 1909, Windows 10 Version 21H1, Windows Server 2022
Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2
Windows Server version 20H2, Windows 11 version 21H2, Windows 10 Version 1507
Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation)
Windows 7, Windows 7 Service Pack 1, Windows 8.1
Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation)
Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1
Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012
Windows Server 2012 (Server Core installation), Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to run arbitrary code on targeted systems.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security updates from Microsoft.
Monitor for any abnormal activities on the network.

Long-Term Security Practices

Regularly update systems and applications.
Implement network segmentation and access controls.

Patching and Updates

Ensure timely installation of security patches provided by Microsoft.