Adobe Flash Player versions 18.104.22.168 and earlier have an exploitable memory corruption vulnerability related to setting visual mode effects. Successful exploitation could lead to arbitrary code execution.
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.