{"cve":"CVE-2025-40074","nvd":{"published":"2025-10-28T12:15:41.943","modified":"2026-10-19T21:10:00.160","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: start using dst_dev_rcu()\n\nChange icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.\n\nChange ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),\nipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d","https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8","https://git.kernel.org/stable/c/864155c164654110f68a17a63bd0339754790d67","https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc","https://git.kernel.org/stable/c/e150f273cd8ed34ebc6d03758aad95c12fc58337"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-40074","score":0.00461,"percentile":0.39687,"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."]}