{"id":"CVE-2021-1769","aliases":["EUVD-2021-7233","GHSA-gwp7-wwp2-44mq"],"status":"published","title":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2,...","description":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00318,"percentile":0.24929,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-04-02T17:55:43Z","modified":"2026-06-17T03:32:31Z","products":[{"vendor":"apple","product":"ios and ipados"},{"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/HT212147","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212146","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212148","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT212149","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1769"},{"url":"https://github.com/advisories/GHSA-gwp7-wwp2-44mq"}],"sources":{"cve":[{"id":"CVE-2021-1769","description":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","status":"published","published":"2021-04-02T17:55:43Z","modified":"2024-08-03T16:25:06.176Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-7233","description":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","status":"published","published":"2021-04-02T17:55:43Z","modified":"2024-08-03T16:25:06Z","updated_at":"2026-11-03T03:25:14.678157Z"}],"ghsa":[{"id":"GHSA-gwp7-wwp2-44mq","title":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2,...","description":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","status":"published","published":"2022-05-24T17:46:19Z","modified":"2023-01-29T05:06:14Z","updated_at":"2026-11-02T14:45:58.601163Z"}],"nvd":[{"id":"CVE-2021-1769","description":"A logic issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","status":"published","published":"2021-04-02T18:15:20.623Z","modified":"2026-06-17T03:32:31.5Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}