{"api_version":"1","generated_at":"2026-07-23T08:17:04+00:00","cve":"CVE-2019-8591","urls":{"html":"https://cve.report/CVE-2019-8591","api":"https://cve.report/api/cve/CVE-2019-8591.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-8591","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-8591"},"summary":{"title":"CVE-2019-8591","description":"A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. An application may be able to cause unexpected system termination or write kernel memory.","state":"PUBLIC","assigner":"product-security@apple.com","published_at":"2019-12-18 18:15:00","updated_at":"2019-12-20 22:52:00"},"problem_types":["CWE-843"],"metrics":[],"references":[{"url":"https://support.apple.com/HT210119","name":"https://support.apple.com/HT210119","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT210122","name":"https://support.apple.com/HT210122","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of watchOS 5.2.1 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT210118","name":"https://support.apple.com/HT210118","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of iOS 12.3 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT210120","name":"https://support.apple.com/HT210120","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of tvOS 12.3 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-8591","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-8591","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"iphone_os","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"iphone_os","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"mac_os_x","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"mac_os_x","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"tvos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"tvos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"watchos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"8591","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"watchos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2019-8591","ASSIGNER":"product-security@apple.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"Apple","product":{"product_data":[{"product_name":"iOS","version":{"version_data":[{"version_affected":"<","version_value":"iOS 12.3"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"macOS Mojave 10.14.5"}]}},{"product_name":"tvOS","version":{"version_data":[{"version_affected":"<","version_value":"tvOS 12.3"}]}},{"product_name":"watchOS","version":{"version_data":[{"version_affected":"<","version_value":"watchOS 5.2.1"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"An application may be able to cause unexpected system termination or write kernel memory"}]}]},"references":{"reference_data":[{"url":"https://support.apple.com/HT210118","refsource":"MISC","name":"https://support.apple.com/HT210118"},{"url":"https://support.apple.com/HT210119","refsource":"MISC","name":"https://support.apple.com/HT210119"},{"url":"https://support.apple.com/HT210120","refsource":"MISC","name":"https://support.apple.com/HT210120"},{"url":"https://support.apple.com/HT210122","refsource":"MISC","name":"https://support.apple.com/HT210122"}]},"description":{"description_data":[{"lang":"eng","value":"A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. An application may be able to cause unexpected system termination or write kernel memory."}]}},"nvd":{"publishedDate":"2019-12-18 18:15:00","lastModifiedDate":"2019-12-20 22:52:00","problem_types":["CWE-843"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:C/A:C","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE","baseScore":8.8},"severity":"HIGH","exploitabilityScore":8.6,"impactScore":9.2,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*","versionEndExcluding":"12.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*","versionEndExcluding":"12.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*","versionEndExcluding":"10.14.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*","versionEndExcluding":"5.2.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"8591","Ordinal":"146427","Title":"CVE-2019-8591","CVE":"CVE-2019-8591","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"8591","Ordinal":"1","NoteData":"A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. An application may be able to cause unexpected system termination or write kernel memory.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"8591","Ordinal":"2","NoteData":"2019-12-18","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"8591","Ordinal":"3","NoteData":"2019-12-18","Type":"Other","Title":"Modified"}]}}}