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I genuinely have no idea what you just said.

I think that says it all.

All I meant was that I don't know how writing your own exploit would make your success rate higher or why you'd need a higher success rate if you've already found an exploitable vulnerability.

A useful vulnerability with no payload is pretty useless. If you don't understand your vulnerability very well, and the code that both created it and triggered it, you will have a 0% success rate. Simple as that.

Never mind, I see what he meant now. My apologies to both you and @Ender