CVE-2026-90891

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.twcert.org.tw/en/cp-139-11204-6b1c6-2.html
https://www.twcert.org.tw/tw/cp-132-11205-f6677-1.html

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 11:17

Updated : 2026-09-14 12:17

NVD link : CVE-2026-90891

Mitre link : CVE-2026-90891

CVE.ORG link : CVE-2026-90891

JSON object : View

Products Affected

No product.

CWE

CWE-1256

Improper Restriction of Software Interfaces to Hardware Features

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