{"id":"CVE-2025-40074","title":"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(),\ni…","summary":"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(),\ni…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < e150f273cd8ed34ebc6d03758aad95c12fc58337","Linux >= 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 684efb2c86c887685f9aa65e1a21b3df6c1f822d","Linux >= 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 923e0734c386984d45de508528a7a7ad91d791cc","Linux >= 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 < 6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8","Linux 4.13"],"published":"2025-10-28","updated":"2026-09-14","sourceUpdated":"2026-09-14T12:17:37.307","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40074","references":[{"url":"https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e150f273cd8ed34ebc6d03758aad95c12fc58337","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0043,"epssPercentile":0.36835,"ingestedAt":"2026-08-27T14:02:52.841Z","slug":"CVE-2025-40074","body":"## Overview\n\nIn 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().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}