{"cve":"CVE-2026-31671","nvd":{"published":"2026-04-24T15:16:46.903","modified":"2026-10-15T02:19:16.107","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm_user: fix info leak in build_report()\n\nstruct xfrm_user_report is a __u8 proto field followed by a struct\nxfrm_selector which means there is three \"empty\" bytes of padding, but\nthe padding is never zeroed before copying to userspace.  Fix that up by\nzeroing the structure before setting individual member variables.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9","https://git.kernel.org/stable/c/0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72","https://git.kernel.org/stable/c/6c55714c931051cd7f4839c19ce0867179fd22fe","https://git.kernel.org/stable/c/716c546e88cfe49d841658240e10cb57bc50a2cc","https://git.kernel.org/stable/c/d10119968d0e1f2b669604baf2a8b5fdb72fa6b4"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:09.003606135+00:00"},"epss":{"cve":"CVE-2026-31671","score":0.0012,"percentile":0.01803,"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."]}