Just this week another serious security vulnerability in Microsoft’s newest operating systems was reported. This could expose users to CE and DOS attacks and was issued in a ‘low splash’ advisory earlier this week.

It only affects Windows 7 and the new R2 release of WS 2008.

The flaw was found in the Canonical Display Driver (cdd.dll), which is used by desktop composition to blend the Windows Graphics Device Interface (GDI) and DirectX drawing.

Microsoft reports that it has activated its security response process and will provide a patch once investigations are complete.