Adobe not only knew about the security flaw that Shane Macaulay used to hack Vista, they even had a patched patch ready for the next Flash Player update later in the month. The flaw may have cost Vista the title of impenetrable OS, and that’s gonna hurt MS fanboys dearly. Adobe were not in the dark about the flaw, however, if they were in the know, don’t you guys think they have a responsibility to release the fix ASAP? Putting our systems at unnecessary risk due to our choice to support third party software just doesn’t seem fair.”]
Source: https://gizmodo.com/adobe-knew-of-vista-pwn-2-own-hack-all-along-376585