How is an attack with non-zero likelihood not a vulnerability? There is an attack. It isn't impossible. Therefore there is a possibility it can be carried out.
that has been addressed as nauseum. no practical attack was demonstrated. and DCI repeatedly ignored the call to publish their code. see https://twitter.com/c___f___b/status/964603104216920066 …. also the Official $IOTA Response was greeted by *crickets* 

https://blog.iota.org/official-iota-foundation-response-to-the-digital-currency-initiative-at-the-mit-media-lab-part-1-72434583a2 …
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So you are saying the "copy protection" didn't work then?
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it has served its purposes. and now it’s no longer needed. so go find a weakness with your infosec experts buddies. the reward is high! it would be great for your careers if you can break
$IOTA. and you can save a lot of us who are deluded to believe that IOTA is safe! thx!
End of conversation
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