{"cve":"CVE-2021-3541","nvd":{"published":"2021-07-09T17:15:07.973","modified":"2026-10-14T10:17:45.397","status":"Modified","description":"A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-776"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1950515","https://security.netapp.com/advisory/ntap-20210805-0007/","https://www.oracle.com/security-alerts/cpujan2022.html","https://bugzilla.redhat.com/show_bug.cgi?id=1950515","https://security.netapp.com/advisory/ntap-20210805-0007/"],"products":["netapp:active_iq_unified_manager","netapp:cloud_backup","netapp:clustered_data_ontap","netapp:clustered_data_ontap_antivirus_connector","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h700e_firmware","netapp:h700s_firmware","netapp:manageability_software_development_kit","netapp:ontap_select_deploy_administration_utility","netapp:smi-s_provider","netapp:snapdrive","oracle:zfs_storage_appliance_kit","redhat:jboss_core_services","xmlsoft:libxml2"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-3541","score":0.02065,"percentile":0.81237,"date":"2026-10-25"},"kev":null,"osv":[],"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."]}