Zero Day Bug how about 730 day bug
http://www.theregister.co.uk/Design/graphics/icons/comment/flame_32.png
There really should be some guidelines in place that limit the amount of time it takes to fix these bugs. The more time they are out there being exposed the more time the hacker/cracker or anyone else for that matter has to exploit millions of computers. With all the cyber attacks lately you really would think IT security would notch this up as a main priority.