{"cve":"CVE-2023-4004","nvd":{"published":"2023-07-31T17:15:10.203","modified":"2026-10-14T22:17:16.357","status":"Modified","description":"A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://access.redhat.com/errata/RHSA-2023:4961","https://access.redhat.com/errata/RHSA-2023:4962","https://access.redhat.com/errata/RHSA-2023:4967","https://access.redhat.com/errata/RHSA-2023:5069","https://access.redhat.com/errata/RHSA-2023:5091"],"products":["debian:debian_linux","fedoraproject:fedora","linux:linux_kernel","netapp:h300s","netapp:h410s","netapp:h500s","netapp:h700s","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T21:38:35.729974749+00:00"},"epss":{"cve":"CVE-2023-4004","score":0.00917,"percentile":0.59951,"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."]}