{"cve":"CVE-2026-23679","nvd":{"published":"2026-05-27T14:16:44.170","modified":"2026-10-14T20:10:00.190","status":"Modified","description":"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.","cvss_v4":{"vector":"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","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-125"],"references":["https://github.com/libusb/libusb/commit/578ab76b4c434f8b204137ab6d7310689c7a9704","https://github.com/libusb/libusb/issues/1813","https://github.com/libusb/libusb/pull/1814","https://github.com/libusb/libusb/releases/tag/v1.0.30","https://www.vulncheck.com/advisories/libusb-null-pointer-dereference-in-parse-interface"],"products":["libusb:libusb"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-23679","score":0.00184,"percentile":0.07944,"date":"2026-10-25"},"kev":null,"osv":[{"id":"PYSEC-2026-3978","url":"https://osv.dev/vulnerability/PYSEC-2026-3978","summary":"","modified":"2026-09-11T12:00:03.923366646Z","packages":[{"ecosystem":"PyPI","name":"libusb","purl":"pkg:pypi/libusb","ranges":["<1.0.30"],"fixed":["1.0.30"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}