CVE-2026-9492: GIGABYTE Mbstorage

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• GIGABYTE Mbstorage: up to and including 26.02.10.01

Published 2026-07-13. Last modified 2026-07-14.