I don't know why this was downvoted, it's a very reasonable assumption given the scale and spread of people who knew. Sure there's no evidence of any actual att

I don't know why this was downvoted, it's a very reasonable assumption given the scale and spread of people who knew. Sure there's no evidence of any actual attacks exploiting this vulnerability, but that doesn't mean we can discount the chance that it was known to malicious parties before the wider public.