The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on 32-bit versions of Microsoft Windows Server 2008 SP2 and R2 SP1 Windows 7 SP1 Windows 8.1 Windows Server 2012 Gold and R2 Windows RT 8.1 Windows 10 Gold 1511 1607 and 1703 does not properly scan a specially crafted file leading to memory corruption. aka \Microsoft Malware Protection Engine Remote Code Execution Vulnerability\.