{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116776", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-26T21:53:35.166Z", "datePublished": "2026-10-28T15:42:11.023Z", "dateUpdated": "2026-10-29T18:37:18.070Z"}, "containers": {"cna": {"title": "USB Test: Heap-based Buffer Overflow in getSectorSize via untrusted DISK_GEOMETRY.BytesPerSector leads to RCE/DoS", "problemTypes": [{"descriptions": [{"cweId": "CWE-122", "lang": "en", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "PHYSICAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:P/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H", "version": "4.0"}}], "references": [{"name": "https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3"}, {"name": "https://github.com/n-romanovich/usb-test/commit/5b6caac844461024520b02337d3a541fbe128f89", "tags": ["x_refsource_MISC"], "url": "https://github.com/n-romanovich/usb-test/commit/5b6caac844461024520b02337d3a541fbe128f89"}, {"name": "https://github.com/n-romanovich/usb-test/releases/tag/release-v1.1.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/n-romanovich/usb-test/releases/tag/release-v1.1.5"}], "affected": [{"vendor": "n-romanovich", "product": "usb-test", "versions": [{"version": "< 1.1.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-28T15:42:11.023Z"}, "descriptions": [{"lang": "en", "value": "USB Test is a lightweight Windows CLI utility for verifying sector integrity and detecting overreported capacity on USB flash drives. Prior to version 1.1.5, getSectorSize() in USB Test/src/driveinfo.cpp trusts DISK_GEOMETRY.BytesPerSector returned by IOCTL_DISK_GET_DRIVE_GEOMETRY without checking whether the call succeeded or enforcing size bounds. USB Test/src/drivetest.cpp uses the value for division and to size a heap buffer before memcpy(buffer.data(), &sector, 8), so a physically connected malicious USB storage device can report a value below eight bytes and cause repeated out-of-bounds writes, or report zero and cause a divide-by-zero denial of service when a user starts a drive test. The heap corruption can crash the elevated application and may permit arbitrary code execution. This issue is fixed in version 1.1.5."}], "source": {"advisory": "GHSA-cfrv-c9q2-7cr3", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-29T18:36:46.958376Z", "id": "CVE-2026-116776", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T18:37:18.070Z"}}]}}

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{"affected": [{"affectedData": [{"product": "usb-test", "vendor": "n-romanovich", "versions": [{"status": "affected", "version": "< 1.1.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "USB Test is a lightweight Windows CLI utility for verifying sector integrity and detecting overreported capacity on USB flash drives. Prior to version 1.1.5, getSectorSize() in USB Test/src/driveinfo.cpp trusts DISK_GEOMETRY.BytesPerSector returned by IOCTL_DISK_GET_DRIVE_GEOMETRY without checking whether the call succeeded or enforcing size bounds. USB Test/src/drivetest.cpp uses the value for division and to size a heap buffer before memcpy(buffer.data(), &sector, 8), so a physically connected malicious USB storage device can report a value below eight bytes and cause repeated out-of-bounds writes, or report zero and cause a divide-by-zero denial of service when a user starts a drive test. The heap corruption can crash the elevated application and may permit arbitrary code execution. This issue is fixed in version 1.1.5."}, {"lang": "es", "value": "USB Test es una utilidad ligera de l\u00ednea de comandos (CLI) para Windows que verifica la integridad de los sectores y detecta la capacidad sobreinformada en unidades flash USB. Versiones anteriores a la versi\u00f3n 1.1.5, \u201cgetSectorSize()\u201d en USB Test/src/driveinfo.cpp conf\u00eda en \u201cDISK_GEOMETRY.BytesPerSector\u201d devuelto por \u201cIOCTL_DISK_GET_DRIVE_GEOMETRY\u201d sin verificar si la llamada tuvo \u00e9xito o sin aplicar l\u00edmites de tama\u00f1o. USB Test/src/drivetest.cpp utiliza el valor para la divisi\u00f3n y para dimensionar un b\u00fafer en el heap antes de \u201cmemcpy(buffer.data(), &sector, 8)\u201d, por lo que un dispositivo de almacenamiento USB malicioso conectado f\u00edsicamente puede informar un valor inferior a ocho bytes y causar escrituras fuera de l\u00edmites repetidas, o informar cero y causar una denegaci\u00f3n de servicio por divisi\u00f3n por cero cuando un usuario inicia una prueba de unidad. La corrupci\u00f3n del heap puede bloquear la aplicaci\u00f3n elevada y podr\u00eda permitir la ejecuci\u00f3n de c\u00f3digo arbitrario. Este problema se corrige en la versi\u00f3n 1.1.5."}], "id": "CVE-2026-116776", "lastModified": "2026-11-04T23:10:00.223", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "HIGH", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:P/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-116776", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-29T18:36:46.958376Z", "version": "2.0.3"}}]}, "published": "2026-10-28T16:17:06.773", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/n-romanovich/usb-test/commit/5b6caac844461024520b02337d3a541fbe128f89"}, {"source": "security-advisories@github.com", "url": "https://github.com/n-romanovich/usb-test/releases/tag/release-v1.1.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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