{"cve":"CVE-2025-21946","nvd":{"published":"2025-04-01T16:15:25.730","modified":"2026-07-30T06:21:58.743","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix out-of-bounds in parse_sec_desc()\n\nIf osidoffset, gsidoffset and dacloffset could be greater than smb_ntsd\nstruct size. If it is smaller, It could cause slab-out-of-bounds.\nAnd when validating sid, It need to check it included subauth array size.","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/159d059cbcb0e6d0e7a7b34af3862ba09a6b22d1","https://git.kernel.org/stable/c/6a9831180d0b23b5c97e2bd841aefc8f82900172","https://git.kernel.org/stable/c/c1569dbbe2d43041be9f3fef7ca08bec3b66ad1b","https://git.kernel.org/stable/c/d6e13e19063db24f94b690159d0633aaf72a0f03","https://git.kernel.org/stable/c/f4ee19528664777af8b842f8f001be98345aa973"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:00:57.946988208+00:00"},"epss":{"cve":"CVE-2025-21946","score":0.00501,"percentile":0.42915,"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."]}