Microsoft is planning to release a massive patch Tuesday update.
The update will come with 49 security bulletins spread across 16 software updates, plugging holes in Windows, IE, Office, and .NET.
According to a security advisory, four of the 16 software updates have been rated as 'Critical', while 10 have been rated as 'Important'. The remaining two have managed to get a moderate rating.
Microsoft said the software updates mainly deal with security holes in its Windows operating system, including Windows XP, Vista, Windows 7, Windows Server 2003 and 2008, Microsoft Office XP Service Pack 3, Office 2003 Service Pack 3, Office 2007 Service Pack 2, Office 2010, Office 2004 for Mac and 2008 for Mac.
However, it is still not clear whether Microsoft will be plugging the two security holes being exploited by the Stuxnet worm. The company had earlier patched two holes but had said that there were two more holes that needed to be plugged.