Affected software includes Windows Server 2003, Server 2008, Office XP, Office 2003, Office 2007, Office 2004 for Mac and Office 2008 for Mac. Microsoft also said it is changing its Exploitability Index, the guide it uses to provide customers with information on the likelihood of a vulnerability being exploited. The light Patch Tuesday release follows 17 bulletins that Microsoft issued in April, the company said in a statement earlier this month. The release follows the release of more than a dozen bulletins earlier this year.
Source: https://thehackernews.com/2011/05/microsoft-prepares-critical-windows.html