CVE-2026-90485: IOBit Uninstaller IOCTL Dispatch IURegistryFilter.sys sub_11838 null pointer dereference
A flaw has been found in IOBit Uninstaller 15.5.0.11. Affected by this issue is the function sub11838 of the file IURegistryFilter.sys of the component IOCTL Dispatch Handler. This manipulation causes null pointer dereference. The attack requires local access. The exploit has been published and may be used. Identical IURegistryFilter.sys ships across multiple IObit families. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What level of access does an attacker need to exploit this issue?
An attacker needs local access and low privileges. No user interaction is required according to the provided vector.
What is the likely impact of successful exploitation?
The reported impact is limited to availability: the vulnerability can cause a null pointer dereference in the IOCTL dispatch handler, resulting in a denial-of-service condition. Confidentiality and integrity impacts are not reported.
Is exploitation theoretical?
No. An exploit has been published and may be used.
Could other IObit products be affected?
Possibly. The same IURegistryFilter.sys driver is reported to ship across multiple IObit product families, though no specific additional products or versions are identified.