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Vulnerability record · CVE-2026-9492 · published 13 July 2026

CVE-2026-9492: The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technolo…

The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technology has an Improper Access Control vulnerability. Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges.

8.5 CVSS 4.0 High EPSS 0.16% · top 95.9% CWE-782 · CWE-782 Deferred
8.5CVSS 4.0 base score
0.16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
14 Jul 2026Last modified by NVD

Description

The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technology has an Improper Access Control vulnerability. Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.twcert.org.tw/en/cp-139-11034-f7f2f-2.html
https://www.twcert.org.tw/tw/cp-132-11033-97316-1.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2021-21551Dell dbutil_2_3.sys driver insufficient access control privilege escalationThe Dell dbutil_2_3.sys driver contains insufficient access control that lets a local user reach privileged driver operations. It matters because the…KEVEPSS 79%analysed

Source: NIST National Vulnerability Database (record CVE-2026-9492), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.