I've been watching the developments of the "Word 2007" doc bugs fiasco. Its seems like Microsoft are calling these crashes "features" rather than bugs.
http://www.computerworld.com.au/index.php/id;377659799;fp;2;fpid;1
I'm not sure if this is the result of IT security media contorting the infomation they recieve and presenting it in a provocative way, or if Microsoft are really trying to blow off these bugs as part of their application design.
To make things clear - The bugs that I released are proof of concepts which cause denial of service. In their current state, they do not present a real threat to Word 2007 users. However, having an application crash or consume 100% CPU on a machine due to malformed user input - is probably the most classical description of a software bug.
It also seems that there is no mention of the HLP heap overflow, which probably presents more danger than all 3 doc bugs combined.