Buffer overflow in BreakPoint Software Hex Workshop 5.1.4 allows user-assisted attackers to cause a denial of service and possibly execute arbitrary code via a long mapping reference in a Color Mapping (.cmap) file.

Stack-based buffer overflow in BreakPoint Software Hex Workshop 4.23, 6.0.1.4603, and other 6.x and earlier versions allows remote attackers to execute arbitrary code via a crafted Intel Hex Code (.hex) file. NOTE: some of these details are obtained from third party information.

Buffer overflow vulnerability on Hex Workshop

A denial service vulnerability has been found on  Hex Workshop affecting version 6.7, an attacker could send a command line file arguments and control the Structured Exception Handler (SEH) records resulting in a service shutdown.