{"cve":"CVE-2021-47464","nvd":{"published":"2024-05-22T07:15:11.287","modified":"2026-06-17T04:17:32.117","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix possible null-pointer dereference in audit_filter_rules\n\nFix  possible null-pointer dereference in audit_filter_rules.\n\naudit_filter_rules() error: we previously assumed 'ctx' could be null","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":7.4},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05","https://git.kernel.org/stable/c/4e9e46a700201b4c85081fd478c99c692a9aaa0d","https://git.kernel.org/stable/c/6e3ee990c90494561921c756481d0e2125d8b895","https://git.kernel.org/stable/c/d6f451f1f60c58d73038c7c3177066f8f084e2a2","https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47464","score":0.00226,"percentile":0.13393,"date":"2026-10-31"},"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."]}