PatchSiren cyber security CVE debrief
CVE-2026-9492 GIGABYTE CVE debrief
The MBStorage DRAM lighting control module within Gigabyte Control Center 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. This vulnerability has been assigned CVE-2026-9492 and has a CVSS score of 8.5, indicating a high severity level. The vulnerability affects Gigabyte Control Center, and users should take steps to mitigate it.
- Vendor
- GIGABYTE
- Product
- MBStorage
- CVSS
- HIGH 8.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-13
- Original CVE updated
- 2026-07-13
- Advisory published
- 2026-07-13
- Advisory updated
- 2026-07-13
Who should care
Users of Gigabyte Control Center, particularly those with authenticated local access, should be aware of this vulnerability and take steps to mitigate it. This includes administrators of systems where Gigabyte Control Center is installed, as well as security teams responsible for monitoring and patching vulnerabilities. Additionally, operators and platform administrators may need to review the vulnerability and implement necessary controls to prevent exploitation.
Technical summary
The vulnerability exists in the MBStorage DRAM lighting control module within Gigabyte Control Center. An authenticated local attacker can exploit this by sending specific IOCTL commands through the MyPortIO_x64.sys driver, allowing for arbitrary physical memory read and write operations and gaining kernel-level privileges. The affected product is Gigabyte Control Center, and the vulnerability has been assigned a CVSS score of 8.5, indicating a high severity level.
Defensive priority
High
Recommended defensive actions
- Apply vendor patches or updates as soon as available
- Restrict access to the Gigabyte Control Center to only necessary personnel
- Monitor system logs for suspicious activity related to IOCTL commands
- Consider implementing additional security controls, such as driver signing and verification
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
Evidence notes
The CVE record was published on 2026-07-13T04:16:29.283Z and has not been modified since then. The NVD entry is currently in the 'Received' status. This information is based on the provided source corpus and may not reflect the current status of the vulnerability. Users should verify the information with the official sources for the most up-to-date details.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-13T04:16:29.283Z and has not been modified since then. The NVD entry is currently in the 'Received' status.