CVE-2021-26890 : What You Need to Know
Stay protected from CVE-2021-26890 with this detailed guide. Understand the impact, affected systems, and mitigation strategies to prevent remote code execution on your Microsoft products.
A remote code execution vulnerability known as Application Virtualization Remote Code Execution has been identified in Microsoft products.
Understanding CVE-2021-26890
This vulnerability was made public on March 11, 2021.
What is CVE-2021-26890?
The Application Virtualization Remote Code Execution Vulnerability impacts various Microsoft products, including Windows 10 versions 1809, 1909, 2004, and 20H2, as well as Windows Server 2019 and 2004.
The Impact of CVE-2021-26890
The vulnerability has a CVSS base score of 7.8, indicating a high severity level. Attackers can exploit this weakness to execute remote code on vulnerable systems, potentially leading to complete system compromise.
Technical Details of CVE-2021-26890
This section dives into the specifics of the vulnerability.
Vulnerability Description
The vulnerability allows remote attackers to execute arbitrary code on affected systems, posing a significant security risk.
Affected Systems and Versions
Windows 10 versions 1809, 1909, 2004, and 20H2, along with Windows Server 2019 and 2004, are vulnerable to this exploit.
Exploitation Mechanism
By leveraging this vulnerability, threat actors can remotely run malicious code, compromising the integrity and confidentiality of the system.
Mitigation and Prevention
Protecting systems from CVE-2021-26890 requires immediate action and long-term security practices.
Immediate Steps to Take
Users are advised to apply security patches provided by Microsoft to mitigate the risk of exploitation. Additionally, network segmentation and access control mechanisms can help contain potential attacks.
Long-Term Security Practices
Regular security updates, employee training on phishing awareness, and the implementation of strong security policies are essential for long-term protection against such vulnerabilities.
Patching and Updates
Staying informed about security bulletins and promptly applying patches released by Microsoft is crucial for safeguarding systems against CVE-2021-26890.