{
    "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": "2026-10-28T15:42:11.023Z"
    },
    "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"
            }
        }
    }
}