"Microsoft released four "critical" security bulletins for September’s Patch Tuesday, including a massive update for Microsoft Windows GDI+ that affects multiple products.
All four bulletins address vulnerabilities that permit hackers to remotely execute code. Of the four, the GDI+ bulletin is the largest. GDI+ is a graphics device interface that provides two-dimensional vector graphics, imaging and typography to applications and programmers. It is also the source of five vulnerabilities covered in this month’s update. " – Content courtesy of Microsoft Patch Tuesday Plugs Critical Security Holes