CodeGuru wrote:
it is 100000% a bug and i have sample documented code for it and not it is not a security it is a CLR design bug

If you post it here, you will still be first one to submit it.
However, if I were you, I'd google the Internet. Chances of you finding "serious design CLR bug", after thousands of people have designed it and millions used it subsequently, is dangerously close to zero.

I am not aware of any Microsoft sponsored gift for those who find bugs in Microsoft products, so you have nothing to gain (nor lose) by posting here.