A Use after Free vulnerability exists in IOBit Advanced SystemCare 15 pro via requests sent in sequential order using the IOCTL driver codes which could let a malicious user execute arbitrary code or a Denial of Service (system crash). IOCTL list: iobit_ioctl = 0x8001e01c 0x8001e020 0x8001e024 0x8001e040 0x8001e044 0x8001e048 0x8001e04c 0x8001e000 0x8001e004 0x8001e008 0x8001e00c 0x8001e010 0x8001e014 0x8001e018