{"cve":"CVE-2026-74705","nvd":{"published":"2026-08-22T16:16:45.213","modified":"2026-10-16T20:17:53.320","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nudp: fix potential use-after-free in tunnel segmentation\n\n__skb_udp_tunnel_segment() gets the UDP header before ensuring the\ntunnel header is in the skb head. If the pull reallocates skb->head,\nthe saved UDP header pointer is no longer valid.\n\nGet the UDP header after the pull to avoid a potential use-after-free.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":[],"references":["https://git.kernel.org/stable/c/19d89b13a43640b2da2f277ee462d919d988cb6f","https://git.kernel.org/stable/c/1ae134c012e10384cdac420b5cc6e0615cde0b55","https://git.kernel.org/stable/c/5161e67c561c4f28a5d9335a6e859b02511de92b","https://git.kernel.org/stable/c/588d4a6795d99d080f74ef0b5f391ea8c453ae5d","https://git.kernel.org/stable/c/64d322c288577793eedd352b96ef75234ed380fe"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-74705","score":0.005,"percentile":0.42523,"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."]}