2 x 0 Day exploits For Microsoft Excel!!!

So I just logged into my e-mail, and what do you know, AD [at] heapoverflow.com has just released 2x 0-day exploits for MS Excel. Both of these are NULL Pointer bugs in the application itself, and as yet AD has said that he has not notified MS of these vulns, due to the fact that they probably won't patch them anyway. ;-) Really can't say that I blame him, as MS really have been lagging behind quite a bit now, but hey, maybe one day they'll learn. Nice find AD!!