{"schema":"threatline.record/2","record":{"id":"CVE-2023-0266","aliases":[],"summary":"Linux Kernel Use-After-Free Vulnerability","details":"Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.","categories":["Operating systems"],"product":"Kernel","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-0266","source_modified_at":"2025-10-21T23:15:27.844Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux Kernel","vendor":"Linux","versions":[{"lessThan":"56b88b50565cd8b946a2d00b0c83927b7ebb055e","status":"affected","version":"4.14","versionType":"git"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-0266","source_modified_at":"2025-10-21T23:15:27.844Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux Kernel","ecosystem":null},"version":"56b88b50565cd8b946a2d00b0c83927b7ebb055e","basis":"first unaffected version stated in the CVE record"}],"cvss":7.9,"severity":"High","kev":{"listed":true,"date_added":"2023-03-30","due_date":"2023-04-20","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.03672,"percentile":0.89614,"score_date":"2026-10-23"},"published_at":"2023-01-30T13:09:32.141Z","modified_at":"2025-10-21T23:15:27.844Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2023-0266","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:15:27.844Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2023-0266","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0266","source":"CISA KEV"},{"source":"CVE List","url":"https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1","tags":["x_transferred"]},{"source":"CVE List","url":"https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e","tags":["x_transferred"]},{"source":"CVE List","url":"https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0266","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-01-29T15:07:49.761602Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:15:27.844Z","content_hash":"a4973ff95e4df2e537d9a9ddc15c118da1235498d5efbe9aa19ee44149d864ba"}}