{"cve_id":"CVE-2023-0266","published":"2023-01-30T14:15:10.500000+00:00","last_modified":"2026-06-17T05:25:09.763000+00:00","vuln_status":"Analyzed","description":"A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","base_score":7.0,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"LOW","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-416"],"in_kev":true,"kev_date_added":"2023-03-30","kev_ransomware":false,"epss_score":0.03702,"epss_percentile":0.89741,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"USER","req_vector":"LOCAL","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T10:19:43.779082+00:00","first_seen":"2023-01-30T14:15:10.500000+00:00","kev_first_seen":"2023-03-30T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["debian","linux"],"products":["debian_linux","linux_kernel"],"affected":[{"vendor":"debian","product":"debian_linux","ranges":["10.0"]},{"vendor":"linux","product":"linux_kernel","ranges":["≥ 4.14 and < 4.14.303","≥ 4.15 and < 4.19.270","≥ 4.20 and < 5.4.229","≥ 5.5 and < 5.10.163","≥ 5.11 and < 5.15.88","≥ 5.16 and < 6.1.6"]}]}