Free of pointer not at start of buffer vulnerability exists in CX-One CX-One CXONE-AL[][]D-V4 (The version which was installed with a DVD ver. 4.61.1 or lower, and was updated through CX-One V4 auto update in January 2024 or prior) and Sysmac Studio SYSMAC-SE2[][][] (The version which was installed with a DVD ver. 1.56 or lower, and was updated through Sysmac Studio V1 auto update in January 2024 or prior). Opening a specially crafted project file may lead to arbitrary code execution.
The product calls free() on a pointer to a memory resource that was allocated on the heap, but the pointer is not at the start of the buffer.
This can cause the product to crash, or in some cases, modify critical program variables or execute code. This weakness often occurs when the memory is allocated explicitly on the heap with one of the malloc() family functions and free() is called, but pointer arithmetic has caused the pointer to be in the interior or end of the buffer.