{"id":"CVE-2018-4398","aliases":["EUVD-2018-16184","GHSA-fpw7-ffc3-qq83"],"status":"published","title":"An issue existed in the method for determining prime numbers. This issue was addressed by using...","description":"An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0163,"percentile":0.76393,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2019-04-03T17:43:17Z","modified":"2026-06-17T01:58:54Z","products":[{"vendor":"apple","product":"icloud"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"itunes"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/kb/HT209193","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT209192","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT209195","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT209194","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT209197","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT209198","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4398"},{"url":"https://github.com/advisories/GHSA-fpw7-ffc3-qq83"}],"sources":{"cve":[{"id":"CVE-2018-4398","description":"An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.","status":"published","published":"2019-04-03T17:43:17Z","modified":"2024-08-05T05:11:22.68Z","updated_at":"2026-11-02T14:35:08.024147Z"}],"euvd":[{"id":"EUVD-2018-16184","description":"An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.","status":"published","published":"2019-04-03T17:43:17Z","modified":"2024-08-05T05:11:22Z","updated_at":"2026-11-03T02:40:13.145443Z"}],"ghsa":[{"id":"GHSA-fpw7-ffc3-qq83","title":"An issue existed in the method for determining prime numbers. This issue was addressed by using...","description":"An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.","status":"published","published":"2022-05-14T01:11:56Z","modified":"2023-02-02T05:03:15Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:51:36.097719Z"}],"nvd":[{"id":"CVE-2018-4398","description":"An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1, iCloud for Windows 7.8.","status":"published","published":"2019-04-03T18:29:13.08Z","modified":"2026-06-17T01:58:54.937Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:55.136632Z"}]}}