{"id":"CVE-2018-4247","aliases":["EUVD-2018-16033","GHSA-8q5h-8624-2958"],"status":"published","title":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11...","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the \"Safari\" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0143,"percentile":0.73185,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2018-06-08T18:00:00Z","modified":"2026-06-17T01:58:39Z","products":[{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"safari"}],"references":[{"url":"https://twitter.com/Nate_Kappa/status/1004399403220766725","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/104366","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://support.apple.com/HT208854","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041029","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://support.apple.com/HT208848","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4247"},{"url":"https://github.com/advisories/GHSA-8q5h-8624-2958"}],"sources":{"cve":[{"id":"CVE-2018-4247","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the \"Safari\" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.","status":"published","published":"2018-06-08T18:00:00Z","modified":"2024-08-05T05:11:21.475Z","updated_at":"2026-11-02T14:35:08.024147Z"}],"euvd":[{"id":"EUVD-2018-16033","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the \"Safari\" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.","status":"published","published":"2018-06-08T18:00:00Z","modified":"2024-08-05T05:11:21Z","updated_at":"2026-11-03T02:40:13.563498Z"}],"ghsa":[{"id":"GHSA-8q5h-8624-2958","title":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11...","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the \"Safari\" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.","status":"published","published":"2022-05-14T03:14:10Z","modified":"2023-02-02T05:07:30Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:31.225831Z"}],"nvd":[{"id":"CVE-2018-4247","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. The issue involves the \"Safari\" component. It allows remote attackers to cause a denial of service (persistent Safari outage) via a crafted web site.","status":"published","published":"2018-06-08T18:29:02.697Z","modified":"2026-06-17T01:58:39.507Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:28.483469Z"}]}}