I will give you a hint, the vulnerability is in a 'standard', not any one product. So it will affect a lot of people. The only thing preventing this from being 'the big one' is that it is not remotely exploitable without user intervention. In other words someone (and not necessarily you. hint. hint.) will have to be tricked in to doing something.
We're not usually so melodramatic but we want to make sure as many people see this as possible. Some info has been leaked on this already but the details are quite impressive. So be sure to come back here on 5-18, probably late evening (GMT-6).
Update: The story will be going online shortly after 7:45am (GMT -6, Central Time) on 5-18 using the following link:
Edited by Security Geek, 18 May 2006 - 05:23 AM.