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You're analyzing a C++ program that handles user input. Identify the vulnerability in this code that could lead to arbitrary code execution.
void process_input(char *in) {
char buf[64];
strcpy(buf, in);
printf("Input: %s\n", buf);
}
int main() {
char input[256];
gets(input);
process_input(input);
return 0;
}
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