CVE-2021-44968: Iobit Advanced Systemcare

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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]

Affected products

• Iobit Advanced Systemcare: version 15 only

Published 2022-02-18. Last modified 2026-06-17.