CVE-2021-32537 : Vulnerability Insights and Analysis

Realtek High definition audio Windows driver crashed vulnerability allows local attackers to exploit the HDA driver, leading to a system crash.

Understanding CVE-2021-32537

This CVE, discovered on June 21, 2021, exposes a critical flaw in Realtek's HDA driver, impacting system stability.

What is CVE-2021-32537?

Realtek's HDA driver vulnerability enables local attackers to trigger system crashes by sending malicious commands.

The Impact of CVE-2021-32537

With a CVSS base score of 6.5, this vulnerability poses a medium severity risk, affecting system availability.

Technical Details of CVE-2021-32537

The vulnerability in the Realtek HDA driver allows attackers to crash systems through specially crafted commands.

Vulnerability Description

By sending a specific string to the kernel driver, local attackers can exploit unexpected behavior, leading to system crashes.

Affected Systems and Versions

Realtek HDA driver versions up to 9150, specifically version 8155, are vulnerable to this exploit.

Exploitation Mechanism

Attackers exploit a driver crashed vulnerability within the HDA driver to impact system stability.

Mitigation and Prevention

To secure systems against CVE-2021-32537, it is crucial to take immediate action and implement long-term security practices.

Immediate Steps to Take

Update the Realtek HDA driver to version 9152 to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly monitor for driver updates and apply patches promptly to prevent potential vulnerabilities.

Patching and Updates

Stay informed about security advisories and ensure timely installation of patches to enhance system security.