{"schemaVersion":3,"id":"CVE-2018-4478","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A validation issue was addressed with improved logic. This issue is fixed in macOS High Sierra 10.13.5, Security Update 2018-003 Sierra, Security Update 2018-003 El Capitan. An attacker with physical access to a device may be able to elevate privileges.","dates":{"published":"2021-12-23T19:48:27.000Z","modified":"2024-08-05T05:18:26.523Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.2,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.8,"severity":"medium","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.2,"severity":"high","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00284,"percentile":0.19632,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.009000000000000024,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00275},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00284,"percentile":0.19632}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00275,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00284,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00284,"percentile":0.19632}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-269","name":"Improper Privilege Management","description":"The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/269.html"}],"affected":[{"vendor":"apple","product":"mac_os_x","name":"mac os x","label":"mac_os_x","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 10.13.5","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.11, < 10.11.6","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.12, < 10.12.6","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2016-001","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2016-002","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2016-003","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2017-001","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2017-002","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2017-003","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2017-004","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2017-005","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2018-001","noFixRecorded":false,"fixedIn":null},{"text":"10.11.6:security_update_2018-002","noFixRecorded":false,"fixedIn":null},{"text":"10.12.6","noFixRecorded":false,"fixedIn":null},{"text":"10.12.6:security_update_2017-001","noFixRecorded":false,"fixedIn":null},{"text":"10.12.6:security_update_2017-002","noFixRecorded":false,"fixedIn":null},{"text":"10.12.6:security_update_2018-001","noFixRecorded":false,"fixedIn":null},{"text":"10.12.6:security_update_2018-002","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 10.13.5 | ≥ 10.11, < 10.11.6 | ≥ 10.12, < 10.12.6 | 10.11.6 | 10.11.6:security_update_2016-001 | 10.11.6:security_update_2016-002 | 10.11.6:security_update_2016-003 | 10.11.6:security_update_2017-001 | 10.11.6:security_update_2017-002 | 10.11.6:security_update_2017-003 | 10.11.6:security_update_2017-004 | 10.11.6:security_update_2017-005 | 10.11.6:security_update_2018-001 | 10.11.6:security_update_2018-002 | 10.12.6 | 10.12.6:security_update_2017-001 | 10.12.6:security_update_2017-002 | 10.12.6:security_update_2018-001 | 10.12.6:security_update_2018-002","eol":null,"hubHref":"/vendor/apple/mac_os_x"},{"vendor":"apple","product":"macos","name":"macos","label":"macos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 10.13","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 10.13","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"macos","label":"Apple macOS","category":"os"}},"hubHref":"/vendor/apple/macos"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.apple.com/en-us/HT208849","label":"support.apple.com/en-us/HT208849","hostname":"support.apple.com","tags":["X Refsource MISC","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-12-23T19:48:27.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T05:18:26.523Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T19:21:10.983Z","stale":false,"partial":false}}