{"cve_id":"CVE-2021-30900","published":"2021-08-24T19:15:18.083000+00:00","last_modified":"2026-06-17T03:51:06.180000+00:00","vuln_status":"Analyzed","description":"An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","base_score":7.8,"base_severity":"HIGH","attack_vector":"LOCAL","privileges_req":"NONE","user_interaction":"REQUIRED","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-787"],"in_kev":true,"kev_date_added":"2023-03-30","kev_ransomware":false,"epss_score":0.05204,"epss_percentile":0.92486,"cap_rule_version":"0.1.1","stage":"EXECUTION","req_access":"NONE","req_vector":"LOCAL","req_user_interaction":true,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:47:10.756498+00:00","first_seen":"2021-08-24T19:15:18.083000+00:00","kev_first_seen":"2023-03-30T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["apple"],"products":["ipados","iphone_os","macos"],"affected":[{"vendor":"apple","product":"ipados","ranges":["< 14.8.1","15.0"]},{"vendor":"apple","product":"iphone_os","ranges":["< 14.8.1","15.0"]},{"vendor":"apple","product":"macos","ranges":["< 11.6.1"]}]}