{"cve":"CVE-2021-3517","nvd":{"published":"2021-05-19T14:15:07.553","modified":"2026-10-14T10:17:43.473","status":"Modified","description":"There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","score":8.6},"cwes":["CWE-787","CWE-125"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1954232","https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/"],"products":["debian:debian_linux","fedoraproject:fedora","netapp:active_iq_unified_manager","netapp:clustered_data_ontap","netapp:clustered_data_ontap_antivirus_connector","netapp:e-series_santricity_os_controller","netapp:e-series_santricity_storage_manager","netapp:e-series_santricity_web_services","netapp:hci_h410c_firmware","netapp:hci_management_node","netapp:manageability_software_development_kit","netapp:oncommand_insight","netapp:oncommand_workflow_automation","netapp:ontap_select_deploy_administration_utility","netapp:santricity_unified_manager","netapp:snapdrive","netapp:snapmanager","netapp:solidfire","oracle:communications_cloud_native_core_network_function_cloud_native_environment","oracle:enterprise_manager_base_platform","oracle:mysql_workbench","oracle:openjdk","oracle:peoplesoft_enterprise_peopletools","oracle:real_user_experience_insight","oracle:zfs_storage_appliance_kit","redhat:enterprise_linux","redhat:jboss_core_services","xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-3517","score":0.16986,"percentile":0.97046,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-jw9f-hh49-cvp9","url":"https://osv.dev/vulnerability/GHSA-jw9f-hh49-cvp9","summary":"Nokogiri contains libxml Out-of-bounds Write vulnerability","modified":"2024-03-08T05:19:55.668510Z","packages":[{"ecosystem":"RubyGems","name":"nokogiri","purl":"pkg:gem/nokogiri","ranges":["<1.11.4"],"fixed":["1.11.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}