I haven't checked Apple's "security content" KB articles recently, but I remember that the fix for this bug was not backported at the time: https://truesecdev.

I haven't checked Apple's "security content" KB articles recently, but I remember that the fix for this bug was not backported at the time: https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-api-to-root-privileges-in-apple-os-x/ https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-...