{"id":"CVE-2021-30883","aliases":["EUVD-2021-17800"],"status":"published","title":"Apple Multiple Products Memory Corruption Vulnerability","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..","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":0.14721,"percentile":0.967,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-08-24T18:49:47Z","modified":"2026-06-17T03:51:04Z","kev":{"date_added":"2022-05-23","due_date":"2022-06-13","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-05-23"},{"source":"kev","since":"2022-05-23"}],"products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"multiple products"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/en-us/HT212869","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212872","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212846","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212868","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212874","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212876","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30883","tags":["government-resource","US Government Resource"]}],"sources":{"cve":[{"id":"CVE-2021-30883","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..","status":"published","published":"2021-08-24T18:49:47Z","modified":"2025-10-21T23:25:36.839Z","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":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17800","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..","status":"published","published":"2021-08-24T18:49:47Z","modified":"2025-10-21T23:25:36Z","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"}],"exploited_since":"2022-05-23","updated_at":"2026-11-02T20:31:25.901288Z"}],"kev":[{"id":"CVE-2021-30883","title":"Apple Multiple Products Memory Corruption Vulnerability","description":"Apple iOS, macOS, watchOS, and tvOS contain a memory corruption vulnerability that could allow for remote code execution.","cwes":["CWE-787"],"kev":{"date_added":"2022-05-23","due_date":"2022-06-13","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2021-30883","description":"A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..","status":"published","published":"2021-08-24T19:15:16.403Z","modified":"2026-06-17T03:51:04.443Z","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":"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":"secondary"},{"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"}]}}