https://www.bleepingcomputer.com/news/security/patched-windows-zero-day-provided-full-control-over-vulnerable-systems/

A Windows zero-day vulnerability which got patched by Microsoft as part of the company's April 2019 Patch Tuesday together with 73 other flaws could allow potential attackers to take full control of vulnerable systems.

The 0-day was actively exploited before patching, with Kaspersky Lab's researchers Vasiliy Berdnikov and Boris Larin finding an exploit in the wild actively targeting multiple 64-bit versions of Windows, ranging from "Windows 7 to older builds of Windows 10."