{"id":"CVE-2019-8642","aliases":["EUVD-2019-18032","GHSA-mgj4-gg2g-j7vw"],"status":"published","title":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved...","description":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00317,"percentile":0.24819,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2020-10-27T19:38:49Z","modified":"2026-06-17T02:42:18Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"macos"}],"references":[{"url":"https://support.apple.com/en-us/HT209600","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8642"},{"url":"https://github.com/advisories/GHSA-mgj4-gg2g-j7vw"}],"sources":{"cve":[{"id":"CVE-2019-8642","description":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.","status":"published","published":"2020-10-27T19:38:49Z","modified":"2024-08-04T21:24:29.585Z","updated_at":"2026-11-02T14:20:22.019351Z"}],"euvd":[{"id":"EUVD-2019-18032","description":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.","status":"published","published":"2020-10-27T19:38:49Z","modified":"2024-08-04T21:24:29Z","updated_at":"2026-11-03T03:06:42.084203Z"}],"ghsa":[{"id":"GHSA-mgj4-gg2g-j7vw","title":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved...","description":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.","status":"published","published":"2022-05-24T17:32:18Z","modified":"2023-01-29T05:04:33Z","cwes":["CWE-295"],"updated_at":"2026-11-02T14:45:35.161944Z"}],"nvd":[{"id":"CVE-2019-8642","description":"An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.","status":"published","published":"2020-10-27T20:15:16.657Z","modified":"2026-06-17T02:42:18.43Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"low","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:05:48.502374Z"}]}}