Description
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.
References (3)
Core 3
Core References
Product, Vendor Advisory x_refsource_misc
https://www.iobit.com/en/advancedsystemcarefree.php
Third Party Advisory x_refsource_misc
https://github.com/FULLSHADE/Kernel-exploits
Exploit, Third Party Advisory x_refsource_misc
https://github.com/FULLSHADE/Kernel-exploits/tree/master/AscRegistryFilter.sys
Scores
CVSS v3
6.5
EPSS
0.0377
EPSS Percentile
88.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (1)
iobit/advanced_systemcare
13.2
Published
Feb 05, 2021
Tracked Since
Feb 18, 2026