# CVE-2026-90485 — IOBit Uninstaller

> As of 2026-09-12, CVE-2026-90485 is a MEDIUM-severity vulnerability in IOBit Uninstaller, CVSS v3.1 5.5. No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-90485 as of 2026-09-12; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-12

## What is CVE-2026-90485?

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.

The record classifies CVE-2026-90485 under weakness classes [CWE-476](https://intel.threadlinqs.com/cwe/CWE-476), [CWE-404](https://cwe.mitre.org/data/definitions/404.html). Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 23 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 5.5 — MEDIUM (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:X/RC:R`)
- **CVSS v4.0 base score:** 6.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P`)
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-12

## Is CVE-2026-90485 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **IOBit**: Uninstaller

## How to fix CVE-2026-90485

No vendor patch reference has been recorded for CVE-2026-90485 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-90485

No threat campaign in the Threadlinqs corpus currently references CVE-2026-90485, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org. Last verified by Threadlinqs on 2026-09-14.

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/403064)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/403064/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-90485)
- [vuldb.com — third party advisory (887954)](https://vuldb.com/submit/887954)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-90485
Full detection coverage and IOCs for threats exploiting CVE-2026-90485 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp