CVE-2026-90891
ASRock｜ASRock Polychrome SYNC/RGB software utility - Improper Access Control
- State
- Published
- Severity
- 6.8 Medium
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Reserved
- Sep 14, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | 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 | twcert |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | twcert |
Weaknesses
- CWE-1256 Improper Restriction of Software Interfaces to Hardware
Affected Products
| Product | Versions |
|---|---|
ASRock Polychrome SYNC/RGB for MBASRock |
|
ASRock Polychrome SYNC/RGB for VGAASRock |
|
References
- https://www.twcert.org.tw/tw/cp-132-11205-f6677-1.htmlthird-party-advisory
- https://www.twcert.org.tw/en/cp-139-11204-6b1c6-2.htmlthird-party-advisory
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