CVE-2021-26896 Explained : Impact and Mitigation
Learn about CVE-2021-26896, a Denial of Service vulnerability in Windows DNS Server with a HIGH severity score of 7.5. Discover the impact, affected systems, and mitigation steps here.
A Denial of Service vulnerability in Windows DNS Server has been identified and published by Microsoft. This article provides insights into CVE-2021-26896, including its impact, technical details, and mitigation strategies.
Understanding CVE-2021-26896
This section delves into the specifics of the CVE-2021-26896 vulnerability.
What is CVE-2021-26896?
The CVE-2021-26896 is a Denial of Service vulnerability affecting Windows DNS Server.
The Impact of CVE-2021-26896
The vulnerability has a base severity of HIGH with a CVSS score of 7.5. It can lead to a denial of service attack.
Technical Details of CVE-2021-26896
This section outlines the technical aspects of CVE-2021-26896 in detail.
Vulnerability Description
The vulnerability allows attackers to launch a denial of service attack on Windows DNS Server.
Affected Systems and Versions
Windows Server 2019, Windows Server 2016, Windows Server 2012, and other versions are affected.
Exploitation Mechanism
Attackers can exploit this vulnerability to disrupt the functioning of Windows DNS Server, impacting system availability.
Mitigation and Prevention
Here are the necessary steps to mitigate and prevent exploitation of CVE-2021-26896.
Immediate Steps to Take
Apply the security patch provided by Microsoft to address and remediate this vulnerability.
Long-Term Security Practices
Enhance network security measures and keep systems updated to prevent similar vulnerabilities in the future.
Patching and Updates
Regularly update Windows Server systems to ensure protection against known vulnerabilities.