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CVE Number Vulnerability Product Severity Date
CVE-2021-27063 Windows DNS Server Denial of Service Vulnerability Windows Server 2019 Important 17-03-2021

Technical Information

Brief overview of the risk:

A remote code execution vulnerability on Windows DNS servers which is rated as “exploitation less likely” by Microsoft.  An attacker who successfully exploited the vulnerability could execute arbitrary code in the context of the logged on user. This vulnerability is exploitable only if the server is configured to be a DNS server.

Further information on this vulnerability is available at : CVE-2021-27063

Affected Software

Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server, version 1909 (Server Core installation)
Windows Server, version 2004 (Server Core installation)
Windows Server, version 20H2 (Server Core Installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)