Security researchers have discovered a very distinct software bug that is marked as a very critical software bug, as it turns an airplane in the wrong way. This bug turns the airplane to right instead of left if pilots regulate the pre-set height limit. The other reason for this software bug is that the pilots used the FMSs temperature compensation function in a remarkably cold climate. In Europe, it was published that a necessary airworthiness directive organization operators of CRJ-200 aircraft to impair the automatic temperature compensation till mid-June.”]
Source: https://gbhackers.com/a-critical-software-bug-turns-an-airplane-to-the-wrong-way/