{"id":"CVE-2018-4241","aliases":["EUVD-2018-16027","GHSA-mxv6-q5h6-xgcc"],"status":"published","title":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10...","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0796,"percentile":0.94783,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2018-06-08T18:00:00Z","modified":"2026-06-17T01:58:38Z","exploits":[{"source":"exploitdb","id":"EDB-44849","title":"XNU Kernel - Heap Overflow Due to Bad Bounds Checking in MPTCP","type":"dos","platform":"multiple","date":"2018-06-06","verified":true,"url":"https://www.exploit-db.com/exploits/44849"},{"source":"pocgithub","id":"0neday/multi_path","title":"0neday/multi_path","date":"2018-06-06","url":"https://github.com/0neday/multi_path"}],"products":[{"vendor":"apple","product":"apple_tv"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://www.exploit-db.com/exploits/44849/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://support.apple.com/HT208850","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1558","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://support.apple.com/HT208851","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"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/HT208848","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://support.apple.com/HT208849","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4241"},{"url":"https://github.com/advisories/GHSA-mxv6-q5h6-xgcc"}],"sources":{"cve":[{"id":"CVE-2018-4241","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.","status":"published","published":"2018-06-08T18:00:00Z","modified":"2024-08-05T05:11:21.383Z","updated_at":"2026-11-02T14:35:08.341767Z"}],"euvd":[{"id":"EUVD-2018-16027","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.","status":"published","published":"2018-06-08T18:00:00Z","modified":"2024-08-05T05:11:21Z","updated_at":"2026-11-03T02:40:14.130834Z"}],"ghsa":[{"id":"GHSA-mxv6-q5h6-xgcc","title":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10...","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.","status":"published","published":"2022-05-14T03:14:10Z","modified":"2023-02-02T05:07:50Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:52:35.907796Z"}],"nvd":[{"id":"CVE-2018-4241","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in mptcp_usr_connectx allows attackers to execute arbitrary code in a privileged context via a crafted app.","status":"published","published":"2018-06-08T18:29:02.447Z","modified":"2026-06-17T01:58:38.96Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:28.483469Z"}]}}