{"cve":{"cve_id":"CVE-2021-3518","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.21859,"epss_percentile":0.97617,"epss_as_of":"2026-10-15","description":"There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.","published_at":"2021-05-18T11:20:24Z","last_modified_at":"2026-10-14T10:17:44.110000Z","cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-416"],"nvd_references":["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/","https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html","https://bugzilla.redhat.com/show_bug.cgi?id=1954242","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/","https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","https://security.gentoo.org/glsa/202107-05","https://security.netapp.com/advisory/ntap-20210625-0002/","http://seclists.org/fulldisclosure/2021/Jul/58","http://seclists.org/fulldisclosure/2021/Jul/54","http://seclists.org/fulldisclosure/2021/Jul/55","http://seclists.org/fulldisclosure/2021/Jul/59","https://www.oracle.com/security-alerts/cpuoct2021.html","https://support.apple.com/kb/HT212605","https://support.apple.com/kb/HT212602","https://support.apple.com/kb/HT212601","https://support.apple.com/kb/HT212604","https://www.oracle.com/security-alerts/cpuapr2022.html","https://www.oracle.com/security-alerts/cpujul2022.html"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-10-14T23:59:09.254433Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"9.0","version_start_inclusive":true,"version_end":"9.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"33","version_start_inclusive":true,"version_end":"33","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"34","version_start_inclusive":true,"version_end":"34","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"active-iq-unified-manager","product_name":"active_iq_unified_manager","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"clustered-data-ontap","product_name":"Clustered Data ONTAP","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"clustered-data-ontap-antivirus-connector","product_name":"clustered_data_ontap_antivirus_connector","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"hci-h410c-firmware","product_name":"hci_h410c_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:hci_h410c_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"manageability-software-development-kit","product_name":"manageability_software_development_kit","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:manageability_software_development_kit:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"ontap-select-deploy-administration-utility","product_name":"ONTAP Select Deploy administration utility","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"snapdrive","product_name":"snapdrive","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:windows:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"communications-cloud-native-core-network-function-cloud-native-environment","product_name":"communications_cloud_native_core_network_function_cloud_native_environment","version_start":"1.10.0","version_start_inclusive":true,"version_end":"1.10.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"enterprise-manager-base-platform","product_name":"enterprise_manager_base_platform","version_start":"13.5.0.0","version_start_inclusive":true,"version_end":"13.5.0.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:enterprise_manager_base_platform:13.5.0.0:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"enterprise-manager-base-platform","product_name":"enterprise_manager_base_platform","version_start":"13.4.0.0","version_start_inclusive":true,"version_end":"13.4.0.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"enterprise-manager-ops-center","product_name":"enterprise_manager_ops_center","version_start":"12.4.0.0","version_start_inclusive":true,"version_end":"12.4.0.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"mysql-workbench","product_name":"mysql_workbench","version_start":null,"version_start_inclusive":null,"version_end":"8.0.26","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"peoplesoft-enterprise-peopletools","product_name":"peoplesoft_enterprise_peopletools","version_start":"8.58","version_start_inclusive":true,"version_end":"8.58","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"real-user-experience-insight","product_name":"real_user_experience_insight","version_start":"13.5.1.0","version_start_inclusive":true,"version_end":"13.5.1.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:real_user_experience_insight:13.5.1.0:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"real-user-experience-insight","product_name":"real_user_experience_insight","version_start":"13.4.1.0","version_start_inclusive":true,"version_end":"13.4.1.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:real_user_experience_insight:13.4.1.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"enterprise-linux","product_name":"enterprise_linux","version_start":"8.0","version_start_inclusive":true,"version_end":"8.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"},{"vendor_slug":"redhat","vendor_name":"RedHat","product_slug":"jboss-core-services","product_name":"jboss_core_services","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*"},{"vendor_slug":"xmlsoft","vendor_name":"xmlsoft","product_slug":"libxml2","product_name":"libxml2","version_start":null,"version_start_inclusive":null,"version_end":"2.9.11","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1954242","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202107-05","source_type":"MISC","tags":[]},{"url":"https://security.netapp.com/advisory/ntap-20210625-0002/","source_type":"MISC","tags":[]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/58","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/54","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/55","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://seclists.org/fulldisclosure/2021/Jul/59","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://support.apple.com/kb/HT212605","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://support.apple.com/kb/HT212602","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://support.apple.com/kb/HT212601","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://support.apple.com/kb/HT212604","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2021-05-18T11:20:24Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-10-14T23:59:09.254433Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-14T23:59:09.254433Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-14T23:59:09.254433Z","label":"CVSS score revised","source":"nvd"}]}