WellinTech KingView 6.5.3 and earlier uses a weak password-hashing algorithm, which makes it easier for local users to discover credentials by reading an unspecified file.
WellinTech KingView 6.53 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via a crafted packet to (1) TCP or (2) UDP port 2001.
Heap-based buffer overflow in nettransdll.dll in HistorySvr.exe (aka HistoryServer.exe) in WellinTech KingView 6.53 and 65.30.2010.18018 allows remote attackers to execute arbitrary code via a crafted op-code 3 packet.