{"cve":"CVE-2026-68479","nvd":{"published":"2026-08-15T06:20:51.380","modified":"2026-10-19T22:17:21.080","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btrtl: validate firmware patch bounds\n\nrtlbt_parse_firmware() copies patch_length - 4 bytes before appending the\nfirmware version. A malformed firmware patch shorter than the version field\ncan make this subtraction underflow and turn the copy into an oversized\nread and write during Bluetooth setup.\n\nThe existing patch_offset + patch_length check can also wrap on 32-bit\narchitectures. Validate the patch length and range without arithmetic\noverflow before allocating or copying the patch.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-190"],"references":["https://git.kernel.org/stable/c/39e01b4addfbbe177567d6ed1dfb81f9cccb19e6","https://git.kernel.org/stable/c/609c5b04a28dc1b0f3af6a7bc93055135b2d2059","https://git.kernel.org/stable/c/6744ab60dfac55d1df5733960aad5be300984301","https://git.kernel.org/stable/c/68c5a2a19987c035eb129e627e579adafb04f637","https://git.kernel.org/stable/c/83534891c058ed71e251135072640911670869aa"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:56:58.798400159+00:00"},"epss":{"cve":"CVE-2026-68479","score":0.00169,"percentile":0.0626,"date":"2026-10-25"},"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."]}