The zero-day vulnerability in Win32k component which was patched with this Month's Patch Tuesday is being actively exploited by attackers. This vulnerability was addressed by Microsoft in CVE-2019-0797 . 

The vulnerability:

This is an Elevation of Privilege vulnerability found in the win32k that fails to handle objects in memory properly. If this zero-day vulnerability is exploited, the attacker could execute arbitrary codes in kernel mode.

Solution:

To stay secured from this exploit, Patch Manager Plus urges you to patch the vulnerability at the earliest possible.

To patch the zero-day vulnerability in Win32k component, kindly look for the applicable KBs mentioned below and patch it.