WellinTech KingSCADA before 188.8.131.52.1 contains a stack-based buffer overflow. The vulnerability is triggered when sending a specially crafted packet to the AlarmServer (AEserver.exe) service listening on TCP port 12401.
CWE-787 - Out-of-Bounds Write
Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.