{"id":"CVE-2018-4111","aliases":["EUVD-2018-15897","GHSA-x4qp-x57c-wv5h"],"status":"published","title":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue...","description":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the \"Mail\" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01114,"percentile":0.66253,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2018-04-03T06:00:00Z","modified":"2026-06-17T01:58:23Z","products":[{"vendor":"apple","product":"mac_os_x"}],"references":[{"url":"https://support.apple.com/HT208692","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/103582","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1040608","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4111"},{"url":"https://github.com/advisories/GHSA-x4qp-x57c-wv5h"}],"sources":{"cve":[{"id":"CVE-2018-4111","description":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the \"Mail\" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.","status":"published","published":"2018-04-03T06:00:00Z","modified":"2024-08-05T05:04:29.818Z","updated_at":"2026-11-02T14:35:08.341767Z"}],"euvd":[{"id":"EUVD-2018-15897","description":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the \"Mail\" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.","status":"published","published":"2018-04-03T06:00:00Z","modified":"2024-08-05T05:04:29Z","updated_at":"2026-11-03T02:40:14.678776Z"}],"ghsa":[{"id":"GHSA-x4qp-x57c-wv5h","title":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue...","description":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the \"Mail\" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.","status":"published","published":"2022-05-13T01:20:14Z","modified":"2023-02-01T05:05:56Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:50:17.937177Z"}],"nvd":[{"id":"CVE-2018-4111","description":"An issue was discovered in certain Apple products. macOS before 10.13.4 is affected. The issue involves the \"Mail\" component. It allows man-in-the-middle attackers to read S/MIME encrypted message content by sending HTML e-mail that references remote resources but lacks a valid S/MIME signature.","status":"published","published":"2018-04-03T06:29:04.563Z","modified":"2026-06-17T01:58:23.053Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:04:24.700429Z"}]}}