CVE-2021-41336 Explained : Impact and Mitigation

Windows Kernel Information Disclosure Vulnerability was published on October 13, 2021, affecting Microsoft's Windows Server 2022 and Windows 11 version 21H2.

Understanding CVE-2021-41336

This CVE describes an Information Disclosure vulnerability in the Windows Kernel.

What is CVE-2021-41336?

The Windows Kernel Information Disclosure Vulnerability allows attackers to potentially access sensitive information.

The Impact of CVE-2021-41336

This vulnerability poses a medium threat level with a base score of 5.5 out of 10 in terms of severity.

Technical Details of CVE-2021-41336

The vulnerability affects the Windows Kernel, potentially exposing sensitive data.

Vulnerability Description

The flaw allows unauthorized access to kernel memory, potentially disclosing critical information.

Affected Systems and Versions

Microsoft Windows Server 2022: Version 10.0.0 to less than 10.0.20348.288
Microsoft Windows 11 version 21H2: Version 10.0.0 to less than 10.0.22000.258

Exploitation Mechanism

Attackers can exploit this vulnerability to access sensitive data such as encryption keys or passwords.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-41336:

Immediate Steps to Take

Apply security patches from Microsoft immediately
Monitor for any unauthorized access to sensitive data

Long-Term Security Practices

Implement strong access controls and user permissions
Regularly update and patch all systems and software

Patching and Updates

Ensure the installation of security updates and patches provided by Microsoft to address this vulnerability.