MS13-053 is rated as “PATCH NOW” by the Internet Storm Center.  All home and corporate users should apply these protective updates promptly

https://isc.sans.edu/diary/Microsoft+July+2013+Black+Tuesday+Overview/16126

http://technet.microsoft.com/en-us/security/bulletin/ms13-jul

QUOTE: Microsoft Security Bulletin Summary for July 2013

* MS13-052 Vulnerabilities in .NET Framework and Silverlight Could Allow Remote Code Execution – Critical

* MS13-053 Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution – Critical

* MS13-054 Vulnerability in GDI+ Could Allow Remote Code Execution – Critical

* MS13-055 Cumulative Security Update for Internet Explorer – Critical

* MS13-056 Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution – Critical

* MS13-057 Vulnerability in Windows Media Format Runtime Could Allow Remote Code Execution – Critical

* MS13-058 Vulnerability in Windows Defender Could Allow Elevation of Privilege – Important