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CVE Number Vulnerability Product Severity Date
CVE-2017-11937 Microsoft Malware Protection Engine Remote Code Execution Vulnerability Microsoft Security Essentials Critical 13-12-2017

Technical Information

Brief overview of the risk:
A remote code execution vulnerability exists when the Microsoft Malware Protection Engine does not properly scan a specially crafted file, leading to memory corruption. An attacker who successfully exploited this vulnerability could execute arbitrary code in the security context of the LocalSystem account and take control of the system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Detailed Information on the risk:
If the affected antimalware software has real-time protection turned on, the Microsoft Malware Protection Engine will scan files automatically, leading to exploitation of the vulnerability when the specially crafted file is scanned. If real-time scanning is not enabled, the attacker would need to wait until a scheduled scan occurs in order for the vulnerability to be exploited. All systems running an affected version of antimalware software are primarily at risk.

Further information on this exploit is available at : CVE-2017-11937

Affected Software


Microsoft Security Essentials
Windows Intune Endpoint Protection
Microsoft Exchange Server 2013
Microsoft Exchange Server 2016
Microsoft Forefront Endpoint Protection 2010
Microsoft System Center Endpoint Protection
Windows Defender on Windows 7 for 32-bit Systems Service Pack 1
Windows Defender on Windows 7 for x64-based Systems Service Pack 1
Windows Defender on Windows 8.1 for 32-bit systems
Windows Defender on Windows 8.1 for x64-based systems
Windows Defender on Windows RT 8.1
Windows Defender on Windows 10 for 32-bit Systems
Windows Defender on Windows 10 for x64-based Systems
Windows Defender on Windows 10 Version 1511 for x64-based Systems
Windows Defender on Windows 10 Version 1511 for 32-bit Systems
Windows Defender on Windows Server 2016
Windows Defender on Windows 10 Version 1607 for 32-bit Systems
Windows Defender on Windows 10 Version 1607 for x64-based Systems
Windows Defender on Windows Server 2016 (Server Core installation)
Windows Defender on Windows 10 Version 1703 for 32-bit Systems
Windows Defender on Windows 10 Version 1703 for x64-based Systems
Windows Defender on Windows 10 Version 1709 for 32-bit Systems
Windows Defender on Windows 10 Version 1709 for x64-based Systems
Windows Defender on Windows Server version 1709 (Server Core Installation)