Some modern vehicles, my 2012 F350....Mercedes, activate the brakes on one side of the vehicle for various reasons.
On the F350, to cancel trailer sway or fishtail. On the Mercedes to make instant changes in direction to return a sleepy driver to his correct lane when a head on is imminent.
One could use that feature to cause a vehicle to leave the road.
Stability control over-ride?
Certainly possible.
While all this stuff can be “demonstrated”, I’m not convinced that it is being done in the real world.