Can you please tell me what vulnerability is in this code and explain to me how it could be exploited. Then can you tell me the improvements to the code necessary to prevent it and type it out in C please.

void copyDate (unsigned char *pDateString, int size); int main(void) { unsigned char date[25] = 2022-01-01T00:00:00Z; copyDate(date, sizeof(date)); return 0; } void copyDate (unsigned char *pDateString, int size) { unsigned char tempString[8]; memcpy(tempString, pDateString, size); }