CVE-2026-90890 (CVSS 5.5)

Description

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0010

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-822 CWE-822

References

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-90890? +

CVE-2026-90890 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0010, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90890? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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