CVE-2026-9492
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
The MBStorage DRAM lighting control module in Gigabyte Control Center (GCC) has an Improper Access Control vulnerability. An authenticated local attacker can send specific IOCTL commands via the MyPortIO_x64.sys driver, allowing arbitrary read/write of physical memory and kernel-level privilege escalation.
Risk Assessment
The organization is at risk of local privilege escalation, enabling an attacker to gain kernel-level control, steal sensitive data, or install persistent malware.
Recommendation
Immediately update Gigabyte Control Center to the latest patched version and restrict local access to systems running GCC.
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Original NVD description (English source)
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.