CVE-2021-26431 Explained : Impact and Mitigation
Learn about CVE-2021-26431, a Windows Recovery Environment Agent Elevation of Privilege Vulnerability affecting various Windows versions. Find out its impact, affected systems, and mitigation steps.
Windows Recovery Environment Agent Elevation of Privilege Vulnerability was published on August 10, 2021, with a CVSS base score of 7.8.
Understanding CVE-2021-26431
This CVE involves an Elevation of Privilege vulnerability in the Windows Recovery Environment Agent.
What is CVE-2021-26431?
The CVE-2021-26431 vulnerability pertains to the Windows Recovery Environment Agent and allows attackers to gain elevated privileges on affected systems.
The Impact of CVE-2021-26431
The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.8. Attackers can exploit this flaw to escalate their privileges on compromised systems.
Technical Details of CVE-2021-26431
This section provides more specific technical details about the vulnerability.
Vulnerability Description
The vulnerability involves an Elevation of Privilege issue in the Windows Recovery Environment Agent.
Affected Systems and Versions
The vulnerability affects various versions of Microsoft Windows, including Windows 10 Version 21H1, 20H2, and Windows Server versions 2004, and 20H2.
Exploitation Mechanism
Attackers can exploit this vulnerability by running specially crafted applications that could elevate their privileges on the targeted systems.
Mitigation and Prevention
To safeguard systems from CVE-2021-26431, immediate action is crucial.
Immediate Steps to Take
Users are advised to apply the necessary security updates and patches provided by Microsoft promptly.
Long-Term Security Practices
Implementing robust security measures, restricting user permissions, and monitoring system activities can help mitigate the risk of such vulnerabilities.
Patching and Updates
Regularly check for security updates from Microsoft and ensure systems are up to date with the latest patches.