If it is similar to the last one
Either the previous fix was incomplete or this was the next vulnerability NSO group had ready in case their previous one was found and fixed.
If Apple was clever they'd pay a few government lackeys somewhere in the world who are in a position to purchase NSO group's services to do so for a few phones in Apple's labs. Provide them with appropriately spoofed GPS info, etc. and simulate normal usage while logging all traffic and waiting for NSO group's next exploit to be put into service. With all the logging to know exactly how the exploit works they could knock them down as quickly as NSO group could put them up until they run out.