{"cve":"CVE-2026-68339","nvd":{"published":"2026-08-10T13:20:24.357","modified":"2026-08-17T06:17:42.063","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btusb: validate Realtek vendor event length\n\nbtusb_recv_event_realtek() reads the event code at data[0] and the Realtek\nsubevent code at data[2] before deciding whether to consume a vendor event\nas a coredump.\n\nFor example, the two-byte event ff 00 contains a complete vendor-event\nheader declaring zero parameters. The old classifier still reads a\nnonexistent third byte and can misclassify the event as a coredump if the\nadjacent byte is 0x34.\n\nRequire the HCI event header and first parameter to be present before\ninspecting the Realtek subevent code. Short events continue through the\nnormal HCI receive path, which owns their protocol validation.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/24b0758193d70da47ef8b979153d2a181dbdf34e","https://git.kernel.org/stable/c/400267bab0f4076088e163e58cad2bb41c3cf5e7","https://git.kernel.org/stable/c/8881daaafadbe7fb2b7341d16a3949114409c90c","https://git.kernel.org/stable/c/8de58bfa26e028f99271dde5a92107cd07f5e063","https://git.kernel.org/stable/c/df541cd485ff80a5ddc579d99687bc7506df9851"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-68339","score":0.00209,"percentile":0.11091,"date":"2026-10-31"},"kev":null,"osv":[],"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."]}