{"id":"CVE-2023-4133","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-4133","generatedAt":"2026-10-28T01:11:06.782Z","title":"A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel.","description":"A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.","published":"2023-08-03T15:15:34.000Z","lastModified":"2026-06-17T06:37:09.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-416"],"affected":["linux/linux kernel","redhat/enterprise linux","fedoraproject/fedora"],"epss":{"score":0.00225,"percentile":0.13107,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2024:2394","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2950","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:3138","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4133","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2221702","tags":["Issue Tracking"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2024:2394","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:2950","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2024:3138","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/security/cve/CVE-2023-4133","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2221702","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-4133","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}