MEDIUMVulnerability
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.
Properties
- severity
- MEDIUM
- score
- 5.5
- cve_id
- CVE-2026-90891
- signal_observed_at
- 2026-09-23T22:45:07+00:00
- vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-09-14T11:17:07.643
- last_modified
- 2026-09-18T19:15:11.780
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]
Explore deeper with Ninja Signal's threat intelligence graph