An issue was discovered in Foxit Reader and PhantomPDF before 9.6. It has an out-of-bounds write when Internet Explorer is used.
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.