Apple AirPort Base Station Firmware before 7.6.7 and 7.7.x before 7.7.7 misparses DNS data, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors.
https://support.apple.com/HT206849
http://www.securitytracker.com/id/1036136
http://lists.apple.com/archives/security-announce/2016/Jun/msg00000.html