I'm publishing some
research today, a major design flaw in Windows that's existed for almost *two decades*. I wrote a blog post on the story of the discovery all the way through to exploitation.
https://googleprojectzero.blogspot.com/2019/08/down-rabbit-hole.html …
They don't really have anything in common, this bug doesn't have anything to do with messages. If you're interested in that though, I did find a problem a few years ago with broadcast messages, http://blog.cmpxchg8b.com/2013/02/a-few-years-ago-while-working-on.html …