IOBit Uninstaller IOCTL Dispatch IURegistryFilter.sys sub_11838 null pointer dereference (CVE-2026-90485) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90485

IOBit Uninstaller IOCTL Dispatch IURegistryFilter.sys sub_11838 null pointer dereference

Answer in brief

CVE-2026-90485 records a Unknown severity vulnerability in IOBit Uninstaller IOCTL Dispatch IURegistryFilter.sys sub_11838 null pointer dereference. The current sources do not mark it as known exploited. The current feed maps IOBit/Uninstaller (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 12, 2026Updated Sep 12, 2026Source checked Sep 12, 2026First seen by HOL Sep 12, 2026Material review Sep 12, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps IOBit/Uninstaller (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
IOBit/Uninstallergeneric	15.5.0.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for IOBit/Uninstaller.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 12, 2026

Sources and claim methodology

Upstream source description

A flaw has been found in IOBit Uninstaller 15.5.0.11. Affected by this issue is the function sub_11838 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.

Quoted source text, attributed separately from HOL analysis.