Recently, a Zero-Day(O-Day) have been discovered by Google’s 0day bug-hunting team which been found in the Windows Kernel such as Elevation of Privileges(EoP) and also the exploited is been actively in targeted attacks.
As been mentioned below, this vulnerability also been used for sandbox escape where it connect
Google’s Project Zero technical leader has described the vulnerability where it can be compromised by the attacker by performing a privilege escalation method and it also conjunction with security’s vulnerabilities resides within Google Chrome. A group of the attacker can take advantages of the vulnerability to ensure that victim’s system will be affected by malware
As a result, Google Chrome has been issued an emergency security update to their browser in order to fix the vulnerability that related to sandbox escape. The action was taken by Google is to ensure the vulnerability have been patched where they have urged the developer to patch it as quick as possible.