Not as bad as MSBlaster or anything like that, and it doesnt look like it can write to memory, but reading from it is bad enoughA security issue has been identified in Microsoft Windows that could allow an attacker to see information in your computer’s memory over a network. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
Get patched up
http://v4.windowsupdate.microsoft.com/en/default.asp