Risk: High
Microsoft identifies six critical issues, three important issues and one moderate issue in June's Patch Tuesday.
Critical vulnerabilities in Microsoft Active Directory, Windows Print Spooler, Microsoft Office and Microsoft Works Converters could all allow remote code execution. An attacker who successfully exploited any of these vulnerabilities could take complete control of an affected system.
Important issues in Microsoft RPC, Windows Kernel and Internet Information Services could all allow elevation of privilege.
A moderate vulnerability in Windows Search could allow information disclosure.