As promised in Microsoft’s July Advance Notification, Microsoft ships seven security bulletins this month (MS13-052 – MS13-058). At least 34 CVE are being patched. Six of the Security Bulletins are rated “critical” due to remote code execution issues. The vulnerabilities being fixed this month enable RCE across all versions of Windows operating systems, but most of these serious flaws have all been privately reported and there is no indication that they are publicly known or exploited yet. Some however, are publicly known and drew attention from a number of exploit developers. The kernel mode vulnerability, CVE-2013-3172 is publicly known, along with another kernel mode bug publicly disclosed by Tavis Ormandy in May. Unfortunately, an exploit abusing that vulnerability was touched up by another contributor and then already integrated into metasploit for public distribution and use. It’s also interesting that the update for the kernel mode TrueType Font Parsing CVE-2013-3129 bug effects code paths in seven different software packages (Office, Lync, Visual Studio, .NET, Silverlight, and “Windows components”) updated separately by Security Bulletins MS13-052, MS13-053, and MS13-054.