{"id":"CVE-2020-3843","aliases":["EUVD-2020-25108","GHSA-p4qp-fw5j-87q5"],"status":"published","title":"A memory corruption issue was addressed with improved input validation. This issue is fixed in...","description":"A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03578,"percentile":0.89484,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-787"],"published":"2020-02-27T20:45:04Z","modified":"2026-06-17T03:19:07Z","products":[{"vendor":"apple","product":"ios-1"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"watchos"},{"vendor":"apple","product":"watchos-1"}],"references":[{"url":"https://support.apple.com/HT211169","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/HT211176","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/162119/iOS-macOS-Radio-Proximity-Kernel-Memory-Corruption.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3843"},{"url":"https://support.apple.com/HT210919"},{"url":"https://support.apple.com/kb/HT211169"},{"url":"https://support.apple.com/kb/HT211176"},{"url":"http://packetstormsecurity.com/files/156664/iOS-macOS-AWDL-Heap-Corruption-Bounds-Checking.html"},{"url":"http://packetstormsecurity.com/files/158225/iOS-macOS-Wifi-Proximity-Kernel-Double-Free.html"},{"url":"http://seclists.org/fulldisclosure/2020/May/48"},{"url":"http://seclists.org/fulldisclosure/2020/May/50"},{"url":"https://github.com/advisories/GHSA-p4qp-fw5j-87q5"}],"sources":{"cve":[{"id":"CVE-2020-3843","description":"A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2020-02-27T20:45:04Z","modified":"2024-08-04T07:44:51.216Z","updated_at":"2026-11-02T14:35:51.923913Z"}],"euvd":[{"id":"EUVD-2020-25108","description":"A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2020-02-27T20:45:04Z","modified":"2024-08-04T07:44:51Z","updated_at":"2026-11-03T03:08:08.894885Z"}],"ghsa":[{"id":"GHSA-p4qp-fw5j-87q5","title":"A memory corruption issue was addressed with improved input validation. This issue is fixed in...","description":"A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2022-05-24T17:09:47Z","modified":"2023-01-29T05:01:39Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:44:52.661438Z"}],"nvd":[{"id":"CVE-2020-3843","description":"A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.","status":"published","published":"2020-02-27T21:15:17.07Z","modified":"2026-06-17T03:19:07.8Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/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":"2026-11-02T14:05:54.796125Z"}]}}