Several years ago I read a paper about some smaller American university that used a (self-developed, IIRC) CAN bus fuzzer on a US middle class car. In the lab / garage they found that they could engage the breaks, even while driving and verified this on a small airfield...
Even after very intensive search I can't find that paper or website and would like to ask experts in the field for help.
I'm wondering if such a question would be on topic here, or better placed on one of the more IT relevant SE sites...