{"cve":"CVE-2025-40021","nvd":{"published":"2025-10-24T13:15:47.263","modified":"2026-10-19T21:10:00.160","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: dynevent: Add a missing lockdown check on dynevent\n\nSince dynamic_events interface on tracefs is compatible with\nkprobe_events and uprobe_events, it should also check the lockdown\nstatus and reject if it is set.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/07b1f63b5f86765793fab44d3d4c2be681cddafb","https://git.kernel.org/stable/c/0d41604d2d53c1abe27fefb54b37a8f6642a4d74","https://git.kernel.org/stable/c/3887f3814c0e770e6b73567fe0f83a2c01a6470c","https://git.kernel.org/stable/c/456c32e3c4316654f95f9d49c12cbecfb77d5660","https://git.kernel.org/stable/c/573b1e39edfcb7b4eecde0f1664455a1f4462eee"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-40021","score":0.00206,"percentile":0.10636,"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."]}