{"id":"CVE-2019-8641","aliases":["EUVD-2019-18031","GHSA-27cj-jh44-8xw6"],"status":"published","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12...","description":"An out-of-bounds read was addressed with improved input validation.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.1713,"percentile":0.97106,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-125"],"published":"2019-12-18T17:33:20Z","modified":"2026-06-17T02:42:18Z","exploits":[{"source":"exploitdb","id":"EDB-47415","title":"iMessage - Decoding NSSharedKeyDictionary Can Read Object Out of Bounds","type":"dos","platform":"ios","date":"2019-09-24","verified":true,"url":"https://www.exploit-db.com/exploits/47415"},{"source":"exploitdb","id":"EDB-47608","title":"iMessage - Decoding NSSharedKeyDictionary can read ObjC Object at Attacker Controlled Address","type":"dos","platform":"multiple","date":"2019-11-11","verified":true,"url":"https://www.exploit-db.com/exploits/47608"},{"source":"pocgithub","id":"chia33164/CVE-2019-8641-reproduction","title":"chia33164/CVE-2019-8641-reproduction","date":"2020-05-29","url":"https://github.com/chia33164/CVE-2019-8641-reproduction"}],"products":[{"vendor":"apple","product":"ios"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"},{"vendor":"cisco","product":"ios"}],"references":[{"url":"https://support.apple.com/HT210606","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/HT210589","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/HT210607","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/HT210590","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://support.apple.com/HT210588","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8641"},{"url":"https://support.apple.com/HT210346"},{"url":"https://support.apple.com/HT210348"},{"url":"https://support.apple.com/HT210351"},{"url":"https://support.apple.com/HT210353"},{"url":"https://github.com/advisories/GHSA-27cj-jh44-8xw6"}],"sources":{"cve":[{"id":"CVE-2019-8641","description":"An out-of-bounds read was addressed with improved input validation.","status":"published","published":"2019-12-18T17:33:20Z","modified":"2024-08-04T21:24:29.571Z","updated_at":"2026-11-02T14:20:21.703364Z"}],"euvd":[{"id":"EUVD-2019-18031","description":"An out-of-bounds read was addressed with improved input validation.","status":"published","published":"2019-12-18T17:33:20Z","modified":"2024-08-04T21:24:29Z","updated_at":"2026-11-03T03:06:42.084203Z"}],"ghsa":[{"id":"GHSA-27cj-jh44-8xw6","title":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12...","description":"An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.","status":"published","published":"2022-05-24T17:04:22Z","modified":"2023-01-29T05:00:48Z","updated_at":"2026-11-02T14:44:40.234855Z"}],"nvd":[{"id":"CVE-2019-8641","description":"An out-of-bounds read was addressed with improved input validation.","status":"published","published":"2019-12-18T18:15:30.867Z","modified":"2026-06-17T02:42:18.323Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:05:40.856496Z"}]}}