The exploit has been used to distribute Pegasus spyware.
https://www.howtogeek.com/update-your-iphone-and-mac-to-patch-a-critical-zero-click-exploit/?utm_source=dlvr.it&utm_medium=blogger
https://www.howtogeek.com/update-your-iphone-and-mac-to-patch-a-critical-zero-click-exploit/?utm_source=dlvr.it&utm_medium=blogger