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CVE-2026-90891

ASRock｜ASRock Polychrome SYNC/RGB software utility - Improper Access Control

CVSS 4.0 6.8 MEDIUMCVSS 3.1 5.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90891

Published

ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an Improper Access Control vulnerability. Authenticated local attackers can send a specially crafted IOCTL request to cause the driver to write to improperly restricted I/O ports, resulting in a forced operating system reboot.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90891

Published

ASRock Polychrome SYNC/RGB for MB

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "ASRock",
                    "product": "ASRock Polychrome SYNC/RGB for MB",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "1.0.118",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

ASRock Polychrome SYNC/RGB for VGA

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "ASRock",
                    "product": "ASRock Polychrome SYNC/RGB for VGA",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "2.0.219",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON