{"id":"CVE-2023-40396","aliases":["EUVD-2023-44967","GHSA-3c78-wrg5-fqxr"],"status":"published","title":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS...","description":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app 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:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00219,"percentile":0.1246,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-77"],"published":"2024-07-29T20:21:11Z","modified":"2026-06-17T06:17:34Z","products":[{"vendor":"apple","product":"ios"},{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipad_os"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/en-us/HT213938","tags":["x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213936","tags":["x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213940","tags":["x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213937","tags":["x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40396"},{"url":"https://github.com/advisories/GHSA-3c78-wrg5-fqxr"}],"sources":{"cve":[{"id":"CVE-2023-40396","description":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2024-07-29T20:21:11.755Z","modified":"2025-03-19T16:02:24.691Z","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":"adp"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:35:21.971258Z"}],"euvd":[{"id":"EUVD-2023-44967","description":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2024-07-29T20:21:11Z","modified":"2025-03-19T16:02:24Z","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"}],"updated_at":"2026-11-02T20:52:59.10334Z"}],"ghsa":[{"id":"GHSA-3c78-wrg5-fqxr","title":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS...","description":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2024-07-29T21:30:54Z","modified":"2025-03-19T18:31:48Z","cvss":[{"version":"3.1","score":6.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","level":"medium"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T15:00:21.948026Z"}],"nvd":[{"id":"CVE-2023-40396","description":"The issue was addressed with improved memory handling. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14, watchOS 10, tvOS 17. An app may be able to execute arbitrary code with kernel privileges.","status":"published","published":"2024-07-29T21:15:11.453Z","modified":"2026-06-17T06:17:34.903Z","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":"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":"secondary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:09:17.205287Z"}]}}