I wonder if this exploit can be used to jailbreak Iphone 5, untethered at least.. some previous, user-friendly online jailbreaks used .pdf vulnerabilities in Sa

I wonder if this exploit can be used to jailbreak Iphone 5, untethered at least.. some previous, user-friendly online jailbreaks used .pdf vulnerabilities in Safari, but I am not sure if they used it with a combination of another privelege escalation exploit..