Your question is Escalating a Critical Safety Defect. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you uncovered a critical safety flaw in a product or test process. How did you document the issue, how did you communicate the risk to the right stakeholders, and what did you do to get action taken?