This article is a perfect example of this: http://googleprojectzero.blogspot.com/2014/08/the-poisoned-nul-byte-2014-edition.html http://googleprojectzero.blogsp

This article is a perfect example of this: http://googleprojectzero.blogspot.com/2014/08/the-poisoned-nul-byte-2014-edition.html http://googleprojectzero.blogspot.com/2014/08/the-poisoned-n... The author was able to take an off by one error which allowed writing a single null byte all the way to full code execution. These guys are unbelievably good at what they do, and as you state, you can pretty much assume that any vulnerability is exploitable with sufficient effort and skill.