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CVE Number Vulnerability Product Severity Date
CVE-2018-8626 Windows DNS Server Heap Overflow Vulnerability Windows Server Critical 12-12-2018

Technical Information

Brief overview of the risk:
A remote code execution vulnerability exists in Windows Domain Name System (DNS) servers when they fail to properly handle requests. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the Local System Account.

Detailed Information on the risk:
To exploit the vulnerability, an unauthenticated attacker could send malicious requests to a Windows DNS server.
The update addresses the vulnerability by modifying how Windows DNS servers handle requests.

Further information on this exploit is available at : CVE-2018-8626

Affected Software


Windows Server 2012 R2,
Windows Server 2012 R2 (Server Core installation),
Windows Server 2016,
Windows 10 Version 1607 for 32-bit Systems,
Windows 10 Version 1607 for x64-based Systems,
Windows Server 2016 (Server Core installation),
Windows 10 Version 1709 for 32-bit Systems,
Windows 10 Version 1709 for x64-based Systems,
Windows Server, version 1709 (Server Core Installation),
Windows 10 Version 1803 for 32-bit Systems,
Windows 10 Version 1803 for x64-based Systems,
Windows Server, version 1803 (Server Core Installation),
Windows 10 Version 1803 for ARM64-based Systems,
Windows 10 Version 1809 for 32-bit Systems,
Windows 10 Version 1809 for x64-based Systems,
Windows 10 Version 1809 for ARM64-based Systems,
Windows Server 2019,
Windows Server 2019 (Server Core installation),
Windows 10 Version 1709 for ARM64-based Systems