{"cve":"CVE-2025-39943","nvd":{"published":"2025-10-04T08:15:47.357","modified":"2026-10-19T21:10:00.160","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer\n\nIf data_offset and data_length of smb_direct_data_transfer struct are\ninvalid, out of bounds issue could happen.\nThis patch validate data_offset and data_length field in recv_done.","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:N/A:H","score":7.1},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/5282491fc49d5614ac6ddcd012e5743eecb6a67c","https://git.kernel.org/stable/c/529b121b00a6ee3c88fb3c01b443b2b81f686d48","https://git.kernel.org/stable/c/773fddf976d282ef059c36c575ddb81567acd6bc","https://git.kernel.org/stable/c/8be498fcbd5b07272f560b45981d4b9e5a2ad885","https://git.kernel.org/stable/c/bdaab5c6538e250a9654127e688ecbbeb6f771d5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-39943","score":0.00266,"percentile":0.18354,"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."]}