---
id: CVE-2026-90890
title: ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc
summary: >-
  ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an
  Untrusted Pointer Dereference vulnerability. Authenticated local attackers can
  send a specially crafted IOCTL request to cause the driver to dereference an
  unval…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-822
vendor: ASRock
product: ASRock Polychrome SYNC/RGB for MB
affected:
  - polychrome_sync_rgb_for_mb <= 1.0.118
  - polychrome_sync_rgb_for_vga <= 2.0.219
published: '2026-09-14'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:15:11.780'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90890'
references:
  - url: 'https://www.twcert.org.tw/en/cp-139-11204-6b1c6-2.html'
    label: twcert@cert.org.tw
  - url: 'https://www.twcert.org.tw/tw/cp-132-11205-f6677-1.html'
    label: twcert@cert.org.tw
tags:
  - nvd
  - cve.org
epss: 0.00095
epssPercentile: 0.00749
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T10:59:39.368879Z'
ingestedAt: '2026-09-14T15:23:07.462Z'
---

## Overview

ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an Untrusted Pointer Dereference vulnerability. Authenticated local attackers can send a specially crafted IOCTL request to cause the driver to dereference an unvalidated pointer, resulting in an operating system crash.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.