What is Remote Code Execution?

A remote code execution vulnerability has been reported in Microsoft DirectShow. The vulnerability is due to the way Microsoft DirectShow improperly validates input. A remote attacker could exploit this vulnerability by enticing a target user to open a specially crafted file.

Windows 7
Windows 8 and Windows 8.1
Surface Windows RT and Windows RT 8.1
Windows 10

https://technet.microsoft.com/library/security/ms16-007