Unexpected Sign Extension
FATEK Automation WinProladder versions 3.30 and prior lacks proper validation of user-supplied data when parsing project files, which could result in an unexpected sign extension. An attacker could leverage this vulnerability to execute arbitrary code.
CWE-194 - Unexpected Sign Extension
The software performs an operation on a number that causes it to be sign extended when it is transformed into a larger data type. When the original number is negative, this can produce unexpected values that lead to resultant weaknesses.