{"id":"CVE-2018-4251","aliases":["EUVD-2018-16037","GHSA-6qh2-3h42-p5xv"],"status":"published","title":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue...","description":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the \"Firmware\" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0119,"percentile":0.68149,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2018-06-08T18:00:00Z","modified":"2026-06-17T01:58:39Z","products":[{"vendor":"apple","product":"mac_os_x"}],"references":[{"url":"http://www.securitytracker.com/id/1041027","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://support.apple.com/HT208849","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2019/Mar/45","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4251"},{"url":"https://github.com/advisories/GHSA-6qh2-3h42-p5xv"}],"sources":{"cve":[{"id":"CVE-2018-4251","description":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the \"Firmware\" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.","status":"published","published":"2018-06-08T18:00:00Z","modified":"2024-08-05T05:11:21.458Z","updated_at":"2026-11-02T14:35:08.341767Z"}],"euvd":[{"id":"EUVD-2018-16037","description":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the \"Firmware\" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.","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-6qh2-3h42-p5xv","title":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue...","description":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the \"Firmware\" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.","status":"published","published":"2022-05-13T01:52:40Z","modified":"2023-02-02T05:02:06Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:51:21.252342Z"}],"nvd":[{"id":"CVE-2018-4251","description":"An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the \"Firmware\" component. It allows attackers to modify the EFI flash-memory region that a crafted app that has root access.","status":"published","published":"2018-06-08T18:29:02.867Z","modified":"2026-06-17T01:58:39.92Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:C/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:29.837913Z"}]}}