What is CVE-2026-90890?

CVE-2026-90890 is a medium-severity vulnerability in Asrock Polychrome Sync/rgb For Mb, classified under Untrusted Pointer Dereference. CVSS score: 5.5/10. Published 2026-09-14.

How severe is CVE-2026-90890?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Asrock Polychrome Sync/rgb For Mb

CVE-2026-90890

ASRock Polychrome SYNC/RGB software utility developed by ASRock Inc. has an Untrusted Pointer Dereference vulnerability. Authenticated local attackers can send a specially crafted IOCTL request to cause the driver to dereference an unvalidated pointer, resulting in an operating system crash.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Asrock Polychrome Sync/rgb For Mb
Asrock Polychrome Sync/rgb For Vga

Weakness classification (CWE)

CWE-822 — Untrusted Pointer Dereference

References

twcert@cert.org.tw (third-party-advisory)
twcert@cert.org.tw (third-party-advisory)

Frequently asked questions

What is CVE-2026-90890?: CVE-2026-90890 is a medium-severity vulnerability in Asrock Polychrome Sync/rgb For Mb, classified under Untrusted Pointer Dereference. CVSS score: 5.5/10. Published 2026-09-14.
How severe is CVE-2026-90890?: Medium severity. CVSS v3 base score is 5.5 out of 10.