{"id":"CVE-2021-30903","aliases":["EUVD-2021-17820"],"status":"published","description":"This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00349,"percentile":0.28828,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-08-24T18:50:07Z","modified":"2026-06-17T03:51:06Z","products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipad_os"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/kb/HT212871","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.apple.com/kb/HT212872","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.apple.com/kb/HT212876","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.apple.com/kb/HT212874","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.apple.com/en-us/HT212869","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/en-us/HT212867","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/en-us/HT212868","tags":["x_refsource_MISC","x_transferred"]}],"sources":{"cve":[{"id":"CVE-2021-30903","description":"This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.","status":"published","published":"2021-08-24T18:50:07Z","modified":"2024-08-03T22:48:14.134Z","updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-17820","description":"This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.","status":"published","published":"2021-08-24T18:50:07Z","modified":"2024-08-03T22:48:14Z","updated_at":"2026-11-03T03:24:40.575187Z"}],"nvd":[{"id":"CVE-2021-30903","description":"This issue was addressed with improved checks. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.","status":"published","published":"2021-08-24T19:15:18.463Z","modified":"2026-06-17T03:51:06.55Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:57.318236Z"}]}}