{"id":"CVE-2021-30916","aliases":["EUVD-2021-17833"],"status":"published","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.","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":"2026-11-10","score":0.01561,"percentile":0.75459,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-08-24T18:50:19Z","modified":"2026-06-17T03:51:07Z","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/en-us/HT212869","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/en-us/HT212871","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/en-us/HT212872","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"]},{"url":"https://support.apple.com/kb/HT212975","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://support.apple.com/kb/HT212980","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2021/Dec/43","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2021/Dec/44","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]}],"sources":{"cve":[{"id":"CVE-2021-30916","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-08-24T18:50:19Z","modified":"2024-08-03T22:48:14.042Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17833","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-08-24T18:50:19Z","modified":"2024-08-03T22:48:14Z","updated_at":"2026-11-03T03:24:40.575187Z"}],"nvd":[{"id":"CVE-2021-30916","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2021-08-24T19:15:19.297Z","modified":"2026-06-17T03:51:07.987Z","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"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:57.318236Z"}]}}