CVE-2021-26870 : What You Need to Know
Learn about CVE-2021-26870, a high-severity Windows Projected File System Elevation of Privilege Vulnerability impacting Windows 10 and Windows Server systems. Find out the impact, affected versions, and mitigation strategies.
This CVE-2021-26870 article provides insights into the Elevation of Privilege vulnerability found in Windows, affecting various versions including Windows 10 and Windows Server 2019.
Understanding CVE-2021-26870
In this section, we will delve into the details of the CVE-2021-26870 vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-26870?
The CVE-2021-26870, also known as the Windows Projected File System Elevation of Privilege Vulnerability, is an elevation of privilege vulnerability discovered in Windows operating systems.
The Impact of CVE-2021-26870
This vulnerability has a high severity level with a base score of 7.8, indicating a significant risk. If exploited, an attacker could elevate their privileges on the affected system, leading to potential unauthorized access and control.
Technical Details of CVE-2021-26870
Let's explore the technical aspects of CVE-2021-26870, including vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability allows an attacker to exploit the Windows Projected File System, leading to the elevation of privileges on the system.
Affected Systems and Versions
Numerous Microsoft products are affected, including Windows 10 versions 1803, 1809, 1909, 2004, and 20H2, as well as Windows Server 2019 and versions 1909 and 2004.
Exploitation Mechanism
The exploitation of this vulnerability involves manipulating the Projected File System in a way that grants the attacker elevated privileges within the Windows system.
Mitigation and Prevention
Discover the crucial steps to mitigate the risks associated with CVE-2021-26870 and secure your systems against potential attacks.
Immediate Steps to Take
Promptly apply security patches released by Microsoft to address the vulnerability and prevent any unauthorized privilege escalations.
Long-Term Security Practices
Implement strong security measures such as regular security updates, privilege separation, and access controls to enhance the overall security posture.
Patching and Updates
Regularly check for security updates from Microsoft and ensure timely installation to protect your systems from known vulnerabilities.