The payout ranges image on http://krebsonsecurity.com/2016/05/got-90000-a-windows-0-day-could-be-yours/ http://krebsonsecurity.com/2016/05/got-90000-a-windows-0

The payout ranges image on http://krebsonsecurity.com/2016/05/got-90000-a-windows-0-day-could-be-yours/ http://krebsonsecurity.com/2016/05/got-90000-a-windows-0-day... is somewhat quantitative. Chrome with sandbox exploit is 60% more valuable than the same for IE or Safari -- since Safari and IE are on the same tier, this is probably more due to difficulty of exploitation than due to user base.