Microsoft patched four Windows operating system bugs as part of its June Patch Tuesday security bulletin. Each of the bugs are rated important and there are no reports of public exploitation for the flaws. The four bugs are part of a total of 88 vulnerabilities that were patched by Microsoft this month. The bugs are all of which are already publicly known or have proof of concept exploits all of them have been publicly known. Microsoft also patched three hypervisor escape bugs in Hyper-V and Office Vulnerabilities.
Source: https://threatpost.com/microsoft-patches-four-publicly-known-vulnerabilities/145594/