Buffer overflows in networkmap on ASUS RT-N56U RT-N66U RT-AC66U RT-N66R RT-AC66R RT-AC68U RT-AC68R RT-N66W RT-AC66W RT-AC87R RT-AC87U RT-AC51U RT-AC68P RT-N11P RT-N12+ RT-N12E B1 RT-AC3200 RT-AC53U RT-AC1750 RT-AC1900P RT-N300 and RT-AC750 routers with firmware before 3.0.0.4.380.7378; RT-AC68W routers with firmware before 3.0.0.4.380.7266; and RT-N600 RT-N12+ B1 RT-N11P B1 RT-N12VP B1 RT-N12E C1 RT-N300 B1 and RT-N12+ Pro routers with firmware before 3.0.0.4.380.9488; and Asuswrt-Merlin firmware before 380.65_2 allow remote attackers to execute arbitrary code on the router via a long host or port in crafted multicast messages.