{"id":"CVE-2018-9439","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-9439","generatedAt":"2026-10-28T20:07:52.316Z","title":"In __unregister_prot_hook and packet_release of af_packet.c, there is a possible use-after-free due to improper locking.","description":"In __unregister_prot_hook and packet_release of af_packet.c, there is a\n    possible use-after-free due to improper locking. This could lead to local\n    escalation of privilege in the kernel with System execution privileges\n    needed. User interaction is not needed for exploitation.","published":"2024-12-05T00:15:18.000Z","lastModified":"2026-06-17T02:06:41.000Z","status":"Analyzed","sourceIdentifier":"security@android.com","cvss":{"version":"3.1","score":6.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["google/android"],"epss":{"score":0.00083,"percentile":0.00228,"date":"2026-10-27","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 (0.08%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://source.android.com/security/bulletin/pixel/2018-08-01","tags":["Vendor Advisory"],"source":"security@android.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-9439","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."}