Microsoft doesn’t rerelease updates often, this is one of those times
Today Microsoft rereleased update KB2753842 to resolve an issue with OpenType fonts not properly rendering after the original update was installed.
All customers to install the rereleased update, even those who have successfully installed the original KB2753842 update.
MS12-078 – Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2783534) – http://technet.microsoft.com/en-us/security/bulletin/MS12-078
KB2753842 – MS12-078: Description of the security update for the Windows OpenType Compact Font Format (CFF) driver – http://support.microsoft.com/kb/2753842