{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9492", "assignerOrgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e", "state": "PUBLISHED", "assignerShortName": "twcert", "dateReserved": "2026-05-25T02:48:23.519Z", "datePublished": "2026-07-13T03:41:32.750Z", "dateUpdated": "2026-07-13T03:45:02.666Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e", "shortName": "twcert", "dateUpdated": "2026-07-13T03:45:02.666Z"}, "title": "GIGABYTE\uff5cGigabyte Control Center - Improper Access Control", "datePublic": "2026-07-13T03:39:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-782", "description": "CWE-782 Exposed IOCTL with insufficient access control", "type": "CWE"}]}], "affected": [{"vendor": "GIGABYTE", "product": "MBStorage", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "26.02.10.01", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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.</p>"}]}], "references": [{"url": "https://www.twcert.org.tw/tw/cp-132-11033-97316-1.html", "tags": ["third-party-advisory"]}, {"url": "https://www.twcert.org.tw/en/cp-139-11034-f7f2f-2.html", "tags": ["third-party-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.5, "vectorString": "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"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "solutions": [{"lang": "en", "value": "Update MBStorage to version 26.06.03.01 or later.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Update MBStorage to version 26.06.03.01 or later."}]}], "source": {"advisory": "TVN-202607004", "discovery": "EXTERNAL"}, "x_generator": {"engine": "TWCERT TVN Workbench"}}}}

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