CVE-2021-31968
vulnerability analysis and mitigation

Overview

CVE-2021-31968 is a Windows Remote Desktop Services Denial of Service vulnerability that was discovered and disclosed in 2021. The vulnerability affects various versions of Microsoft Windows operating systems, including Windows 10 and Windows Server editions (CVE Mitre).

Technical details

The vulnerability has been assigned a CVSS score of 5.0, indicating a medium severity level. The attack vector is network-based (AV:N), with low attack complexity (AC:L), requiring no authentication (Au:N), and primarily impacts system availability (A:P) without affecting confidentiality or integrity (Rapid7).

Impact

This vulnerability can lead to denial of service conditions in Windows Remote Desktop Services, potentially affecting system availability and disrupting remote access capabilities (CVE Mitre).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across multiple Windows versions. The fixes are available through various KB patches including KB5003687 for Windows 10 1507, KB5003638 for Windows 10 1607, KB5003646 for Windows 10 1809, KB5003635 for Windows 10 1909, KB5003637 for Windows 10 2004/20H2/21H1, and corresponding patches for Windows Server editions (Rapid7).

Additional resources


SourceThis report was generated using AI

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