CVE-2026-90891

MediumCVSS 5.5/10Last modified Sep 18, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1256

Affected software

Vendor	Product	Versions
ASRock	ASRock Polychrome SYNC/RGB for MB	<= 1.0.118
ASRock	ASRock Polychrome SYNC/RGB for VGA	<= 2.0.219

References

Timeline

Published: Sep 14, 2026
Last modified: Sep 18, 2026
NVD status: Deferred

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