CVE-2020-10234

The AscRegistryFilter.sys kernel driver in IObit Advanced SystemCare 13.2 allows an unprivileged user to send an IOCTL to the device driver. If the user provides a NULL entry for the dwIoControlCode parameter, a kernel panic (aka BSOD) follows. The IOCTL codes can be found in the dispatch function: 0x8001E000, 0x8001E004, 0x8001E008, 0x8001E00C, 0x8001E010, 0x8001E014, 0x8001E020, 0x8001E024, 0x8001E040, 0x8001E044, and 0x8001E048. \DosDevices\AscRegistryFilter and \Device\AscRegistryFilter are affected.

• https://github.com/FULLSHADE/Kernel-exploitsThird Party Advisory
• https://github.com/FULLSHADE/Kernel-exploits/tree/master/AscRegistryFilter.sysExploit, Third Party Advisory
• https://www.iobit.com/en/advancedsystemcarefree.phpProduct, Vendor Advisory
• https://github.com/FULLSHADE/Kernel-exploitsThird Party Advisory
• https://github.com/FULLSHADE/Kernel-exploits/tree/master/AscRegistryFilter.sysExploit, Third Party Advisory
• https://www.iobit.com/en/advancedsystemcarefree.phpProduct, Vendor Advisory

Published

Feb 5, 2021

Last Modified

Jun 17, 2026

Status

Modified

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