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CVE-2022-37973 : Security Advisory and Response

Learn about the impact, technical details, affected systems, and mitigation steps for CVE-2022-37973 affecting Windows 10, Windows Server, and Windows 11.

Understanding CVE-2022-37973

A vulnerability named Windows Local Session Manager (LSM) Denial of Service has been identified in Windows systems.

What is CVE-2022-37973?

The CVE-2022-37973 vulnerability, also known as Windows Local Session Manager (LSM) Denial of Service, affects various Microsoft Windows versions, including Windows 10, Windows Server, and Windows 11. It can be exploited to trigger a denial of service condition on the affected systems.

The Impact of CVE-2022-37973

The impact of CVE-2022-37973 is rated as HIGH severity with a base score of 7.7 according to the CVSS v3.1 scoring system. If exploited, it can result in a denial of service, potentially disrupting normal system operation.

Technical Details of CVE-2022-37973

The CVE-2022-37973 vulnerability affects multiple Windows versions, leading to a denial of service condition.

Vulnerability Description

The vulnerability allows attackers to trigger a denial of service on affected Windows systems by exploiting specific flaws in the Local Session Manager (LSM).

Affected Systems and Versions

Windows 10 Version 21H1, Windows Server 2022, Windows 10 Version 20H2, Windows 11 versions 21H2 and 22H2 are among the impacted systems.

Exploitation Mechanism

Exploiting this vulnerability involves sending malicious requests to the Local Session Manager, causing it to crash and deny legitimate users access to resources.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-37973, immediate actions and long-term security practices are recommended.

Immediate Steps to Take:

        Apply security updates provided by Microsoft promptly.
        Implement network segmentation to reduce the attack surface.

Long-Term Security Practices:

        Conduct regular security assessments and audits.
        Train employees on cybersecurity best practices to enhance overall security posture.

Patching and Updates:

Ensure that Windows systems are regularly updated with the latest patches and security fixes from Microsoft to address vulnerabilities like CVE-2022-37973.

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