{"id":"CVE-2021-30838","aliases":["EUVD-2021-17755","GHSA-qrwq-c33r-6gpp"],"status":"published","title":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS...","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01177,"percentile":0.68046,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-10-19T13:11:50Z","modified":"2026-06-17T03:50:58Z","products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/kb/HT212804","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT212807","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212814","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2021/Oct/61","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Mailing List","Release Notes","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30838"},{"url":"https://github.com/advisories/GHSA-qrwq-c33r-6gpp"}],"sources":{"cve":[{"id":"CVE-2021-30838","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.","status":"published","published":"2021-10-19T13:11:50Z","modified":"2024-08-03T22:48:12.765Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17755","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.","status":"published","published":"2021-10-19T13:11:50Z","modified":"2024-08-03T22:48:12Z","updated_at":"2026-11-03T03:24:40.575187Z"}],"ghsa":[{"id":"GHSA-qrwq-c33r-6gpp","title":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS...","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.","status":"published","published":"2022-05-24T19:17:58Z","modified":"2023-01-30T05:03:07Z","updated_at":"2026-11-02T14:46:46.047512Z"}],"nvd":[{"id":"CVE-2021-30838","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15 and iPadOS 15. A malicious application may be able to execute arbitrary code with system privileges on devices with an Apple Neural Engine.","status":"published","published":"2021-10-19T14:15:09.317Z","modified":"2026-06-17T03:50:58.997Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:00.137719Z"}]}}