CVE-2021-34490 : What You Need to Know

A Denial of Service vulnerability in the Windows TCP/IP Driver affecting various Microsoft Windows versions has been identified.

Understanding CVE-2021-34490

This CVE details the impact of a Denial of Service vulnerability in the Windows TCP/IP Driver in multiple Windows versions.

What is CVE-2021-34490?

The CVE-2021-34490 vulnerability refers to a Denial of Service issue in the Windows TCP/IP Driver impacting Windows 10 Version 1809, Windows Server 2019, and other related versions.

The Impact of CVE-2021-34490

The impact of CVE-2021-34490 is considered high, with a base severity score of 7.5. It allows an attacker to disrupt the normal functioning of the affected systems.

Technical Details of CVE-2021-34490

This section provides more insight into the vulnerability, affected systems, and how the exploit can occur.

Vulnerability Description

The vulnerability allows an attacker to launch a Denial of Service attack that could render the affected Windows systems inoperable.

Affected Systems and Versions

Windows 10 Version 1809, Windows Server 2019, and related versions are affected, with specific build numbers listed in the CPEs section.

Exploitation Mechanism

The exploit involves sending specially crafted network packets to the Windows TCP/IP Driver, causing it to crash and resulting in a Denial of Service condition.

Mitigation and Prevention

To protect systems from CVE-2021-34490, immediate steps should be taken, and long-term security measures should be implemented.

Immediate Steps to Take

Administrators should apply security patches provided by Microsoft to mitigate the vulnerability.

Long-Term Security Practices

Regularly update systems, implement network security measures, and monitor for unusual network activity to enhance overall security.

Patching and Updates

Ensure that affected Windows systems are updated with the latest security patches to address the CVE-2021-34490 vulnerability.