CVE-2021-28326 Explained : Impact and Mitigation
Learn about CVE-2021-28326, a Denial of Service vulnerability in Windows AppX Deployment Server affecting Microsoft Windows 10 and Server versions. Find out the impact, affected systems, and mitigation steps.
A Windows AppX Deployment Server Denial of Service Vulnerability has been identified and published as CVE-2021-28326 on April 13, 2021. This CVE affects various versions of Microsoft Windows.
Understanding CVE-2021-28326
This section will cover what CVE-2021-28326 is, its impact, technical details, and mitigation steps.
What is CVE-2021-28326?
The CVE-2021-28326 is a Denial of Service vulnerability affecting Windows AppX Deployment Servers. This vulnerability could allow an attacker to disrupt the normal operations of the server, causing a denial of service.
The Impact of CVE-2021-28326
The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.5. It could potentially lead to system unavailability due to a server crash or service disruption.
Technical Details of CVE-2021-28326
Let's delve into the technical aspects of this vulnerability.
Vulnerability Description
The vulnerability lies in the Windows AppX Deployment Server, allowing attackers to trigger a denial of service condition.
Affected Systems and Versions
Multiple versions of Microsoft Windows are affected, including Windows 10 and Windows Server versions 1803, 1809, 1909, 2004, 20H2, 1507, 1607, and various Server editions.
Exploitation Mechanism
The vulnerability can be exploited by sending specially crafted requests to the vulnerable server, leading to a crash or service disruption.
Mitigation and Prevention
Discover the steps to mitigate and prevent exploitation of CVE-2021-28326.
Immediate Steps to Take
It is recommended to apply security patches provided by Microsoft to address this vulnerability promptly. Network segmentation and traffic monitoring can also help detect exploit attempts.
Long-Term Security Practices
Regularly update and patch Windows systems to minimize the risk of exposure to vulnerabilities like CVE-2021-28326. Implementing access controls and security configurations can further enhance protection.
Patching and Updates
Stay informed about Microsoft's security updates and ensure timely installation of patches on all vulnerable systems to prevent successful exploitation of this vulnerability.