{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23679", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-01-14T17:13:44.903Z", "datePublished": "2026-05-27T13:21:37.035Z", "dateUpdated": "2026-07-14T15:53:32.218Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T15:53:32.218Z" }, "datePublic": "2026-04-25T00:00:00.000Z", "title": "libusb < 1.0.30 NULL Pointer Dereference in parse_interface()", "descriptions": [ { "lang": "en", "value": "libusb before version 1.0.30 contains a NULL pointer dereference vulnerability that allows attackers to crash applications by supplying a malformed USB configuration descriptor where an interface claims bNumEndpoints greater than zero but is followed by a class-specific descriptor whose bLength exceeds the remaining buffer size, causing parse_interface() to return early without allocating the endpoint array. Attackers can exploit this flaw through libusb_get_active_config_descriptor or libusb_get_config_descriptor by providing crafted descriptors via virtualized USB passthrough, file-based descriptor parsing, or network sources, causing any application iterating over endpoints to dereference a NULL endpoint pointer and crash." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-125", "description": "Out-of-bounds Read", "type": "CWE" } ] } ], "affected": [ { "defaultStatus": "affected", "packageURL": "pkg:github/libusb/libusb", "vendor": "libusb", "product": "libusb", "repo": "https://github.com/libusb/libusb", "versions": [ { "status": "affected", "version": "0", "versionType": "semver", "lessThan": "1.0.30" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:libusb:libusb:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.0.30" } ] } ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "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": "MEDIUM", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "version": "3.1", "baseSeverity": "MEDIUM", "baseScore": 6.2, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } } ], "references": [ { "url": "https://github.com/libusb/libusb/releases/tag/v1.0.30", "tags": [ "release-notes" ] }, { "url": "https://github.com/libusb/libusb/issues/1813", "tags": [ "issue-tracking" ] }, { "url": "https://github.com/libusb/libusb/pull/1814", "tags": [ "issue-tracking" ] }, { "url": "https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704", "tags": [ "patch" ] }, { "url": "https://www.vulncheck.com/advisories/libusb-null-pointer-dereference-in-parse-interface", "tags": [ "third-party-advisory" ] } ], "credits": [ { "lang": "en", "value": "djnn", "type": "finder" } ], "x_generator": { "engine": "vulncheck" }, "tags": [ "x_open-source" ], "source": { "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/libusb/libusb/issues/1813", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-28T15:44:53.658670Z", "id": "CVE-2026-23679", "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": "2026-05-28T15:44:57.282Z" } } ] } }