{"api_version":"1","generated_at":"2026-04-23T02:36:15+00:00","cve":"CVE-2020-3909","urls":{"html":"https://cve.report/CVE-2020-3909","api":"https://cve.report/api/cve/CVE-2020-3909.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-3909","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-3909"},"summary":{"title":"CVE-2020-3909","description":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.","state":"PUBLIC","assigner":"product-security@apple.com","published_at":"2020-04-01 18:15:00","updated_at":"2022-06-02 18:44:00"},"problem_types":["CWE-120"],"metrics":[],"references":[{"url":"https://support.apple.com/HT211106","name":"https://support.apple.com/HT211106","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of iCloud for Windows 10.9.3 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211105","name":"https://support.apple.com/HT211105","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of iTunes 12.10.5 for Windows - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211100","name":"https://support.apple.com/HT211100","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","name":"https://www.oracle.com/security-alerts/cpuoct2020.html","refsource":"MISC","tags":[],"title":"Oracle Critical Patch Update Advisory - October 2020","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211103","name":"https://support.apple.com/HT211103","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of watchOS 6.2 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211102","name":"https://support.apple.com/HT211102","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of iOS 13.4 and iPadOS 13.4 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211101","name":"https://support.apple.com/HT211101","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of tvOS 13.4 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.apple.com/HT211107","name":"https://support.apple.com/HT211107","refsource":"MISC","tags":["Vendor Advisory"],"title":"About the security content of iCloud for Windows 7.18 - Apple Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-3909","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3909","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apple","cpe5":"icloud","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"windows","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apple","cpe5":"icloud","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"windows","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"ipados","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"ipados","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","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":"2020","cve_id":"3909","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":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apple","cpe5":"itunes","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"windows","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"apple","cpe5":"itunes","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"windows","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","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":"2020","cve_id":"3909","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":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"tvos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","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":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"watchos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"apple","cpe5":"watchos","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2020","cve_id":"3909","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"oracle","cpe5":"sun_zfs_storage_appliance_kit_software","cpe6":"8.8","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2020-3909","qid":"296073","title":"Oracle Solaris 11.4 Support Repository Update (SRU) 24.75.2 Missing (CPUJUL2020)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2020-3909","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 13.4 and iPadOS 13.4"}]}},{"product_name":"macOS","version":{"version_data":[{"version_affected":"<","version_value":"macOS Catalina 10.15.4"}]}},{"product_name":"tvOS","version":{"version_data":[{"version_affected":"<","version_value":"tvOS 13.4"}]}},{"product_name":"watchOS","version":{"version_data":[{"version_affected":"<","version_value":"watchOS 6.2"}]}},{"product_name":"iTunes for Windows","version":{"version_data":[{"version_affected":"<","version_value":"iTunes for Windows 12.10.5"}]}},{"product_name":"iCloud for Windows","version":{"version_data":[{"version_affected":"<","version_value":"iCloud for Windows 10.9.3"}]}},{"product_name":"iCloud for Windows (Legacy)","version":{"version_data":[{"version_affected":"<","version_value":"iCloud for Windows 7.18"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Multiple issues in libxml2"}]}]},"references":{"reference_data":[{"url":"https://support.apple.com/HT211100","refsource":"MISC","name":"https://support.apple.com/HT211100"},{"url":"https://support.apple.com/HT211102","refsource":"MISC","name":"https://support.apple.com/HT211102"},{"url":"https://support.apple.com/HT211101","refsource":"MISC","name":"https://support.apple.com/HT211101"},{"url":"https://support.apple.com/HT211103","refsource":"MISC","name":"https://support.apple.com/HT211103"},{"url":"https://support.apple.com/HT211105","refsource":"MISC","name":"https://support.apple.com/HT211105"},{"url":"https://support.apple.com/HT211106","refsource":"MISC","name":"https://support.apple.com/HT211106"},{"url":"https://support.apple.com/HT211107","refsource":"MISC","name":"https://support.apple.com/HT211107"},{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","refsource":"MISC","name":"https://www.oracle.com/security-alerts/cpuoct2020.html"}]},"description":{"description_data":[{"lang":"eng","value":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2."}]}},"nvd":{"publishedDate":"2020-04-01 18:15:00","lastModifiedDate":"2022-06-02 18:44:00","problem_types":["CWE-120"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*","versionEndExcluding":"10.15.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*","versionEndExcluding":"12.10.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*","versionEndExcluding":"13.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*","versionEndExcluding":"13.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*","versionEndExcluding":"13.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*","versionEndExcluding":"6.2","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*","versionEndExcluding":"7.18","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*","versionStartIncluding":"10.9","versionEndExcluding":"10.9.3","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit_software:8.8:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"3909","Ordinal":"163684","Title":"CVE-2020-3909","CVE":"CVE-2020-3909","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"3909","Ordinal":"1","NoteData":"A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"3909","Ordinal":"2","NoteData":"2020-04-01","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"3909","Ordinal":"3","NoteData":"2020-10-20","Type":"Other","Title":"Modified"}]}}}