CVE-2021-26860 : What You Need to Know
Learn about CVE-2021-26860, Windows App-V Overlay Filter Elevation of Privilege Vulnerability affecting Windows 10 and Windows Server with a CVSS base score of 7.8. Find out the impact, technical details, affected systems, and mitigation strategies.
Windows App-V Overlay Filter Elevation of Privilege Vulnerability was published by Microsoft on March 9, 2021. It affects various versions of Windows 10 and Windows Server. This CVE has a CVSS base score of 7.8.
Understanding CVE-2021-26860
This section will cover what CVE-2021-26860 is and the impact it has, along with technical details and mitigation strategies.
What is CVE-2021-26860?
Windows App-V Overlay Filter Elevation of Privilege Vulnerability allows attackers to gain elevated privileges on affected systems, potentially leading to unauthorized actions.
The Impact of CVE-2021-26860
With a CVSS base score of 7.8 (High), this vulnerability poses a significant risk to the security and integrity of Windows systems, potentially enabling attackers to execute malicious activities.
Technical Details of CVE-2021-26860
Let's delve into the specifics of the vulnerability, including its description, affected systems and versions, and how it can be exploited.
Vulnerability Description
The vulnerability arises from a flaw in the Windows App-V Overlay Filter, which could be exploited by malicious actors to escalate privileges on impacted systems.
Affected Systems and Versions
Multiple versions of Windows 10 and Windows Server are impacted by this vulnerability, including Windows 10 Version 1809, 1909, 2004, 20H2, and various editions of Windows Server.
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the flawed App-V Overlay Filter to gain elevated privileges, enabling them to execute unauthorized operations on affected systems.
Mitigation and Prevention
Learn how to address and safeguard your systems against CVE-2021-26860 to enhance your cybersecurity posture.
Immediate Steps to Take
Immediate steps involve applying security updates released by Microsoft to patch the vulnerability and mitigate the risk of exploitation.
Long-Term Security Practices
Implementing robust security practices, such as regular security updates, network segmentation, and least privilege access, can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly check for and apply security patches provided by Microsoft to safeguard your systems against known vulnerabilities like CVE-2021-26860.