Kernel privilege escalation via unrestricted driver IOCTLs
Published Jul 13, 2026 · Updated Jul 13, 2026
Improper access control in GIGABYTE MBStorage 26.02.10.01 and earlier allows local users to gain kernel privileges through driver IOCTLs. The MyPortIO_x64.sys IOCTL interface accepts crafted requests from low-privileged callers and exposes arbitrary physical-memory reads and writes. An authenticated local account is required; successful exploitation bypasses operating-system memory protections and enables Ring 0 compromise.
Summary
What happened
Improper access control in GIGABYTE MBStorage 26.02.10.01 and earlier allows local users to gain kernel privileges through driver IOCTLs. The MyPortIO_x64.sys IOCTL interface accepts crafted requests from low-privileged callers and exposes arbitrary physical-memory reads and writes. An authenticated local account is required; successful exploitation bypasses operating-system memory protections and enables Ring 0 compromise.
The record
- CVE
- CVE-2026-9492
- Published
- Jul 13, 2026
- Updated
- Jul 13, 2026
- Vendor
- GIGA-BYTE Technology Co., Ltd.
- Product
- MBStorage DRAM Lighting Control Module
- Classifications
- CWE-782, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 13, 2026CVE publishedPublication date reported by the CVE source.
- Jul 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=26.02.10.01
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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