WebKit in Apple iTunes before 12.5.1 on Windows and Safari before 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
https://support.apple.com/HT207158
https://support.apple.com/HT207157
http://www.securitytracker.com/id/1036854
http://www.securityfocus.com/bid/93062
http://lists.apple.com/archives/security-announce/2016/Sep/msg00012.html
http://lists.apple.com/archives/security-announce/2016/Sep/msg00007.html