CVE-2026-90891
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
ProductASRock Polychrome SYNC/RGB for MB
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-1256CWE-1256
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ASRock ASRock Polychrome SYNC/RGB for MB | v ≤ 1.0.118 | — |
| ASRock ASRock Polychrome SYNC/RGB for VGA | v ≤ 2.0.219 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.