{"cve":"CVE-2021-46143","nvd":{"published":"2022-01-06T04:15:07.017","modified":"2026-10-14T13:17:12.400","status":"Modified","description":"In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-190"],"references":["http://www.openwall.com/lists/oss-security/2022/01/17/3","https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf","https://github.com/libexpat/libexpat/issues/532","https://github.com/libexpat/libexpat/pull/538","https://security.gentoo.org/glsa/202209-24"],"products":["libexpat_project:libexpat","netapp:active_iq_unified_manager","netapp:clustered_data_ontap","netapp:hci_baseboard_management_controller","netapp:oncommand_workflow_automation","netapp:solidfire_\\&_hci_management_node","siemens:sinema_remote_connect_server","tenable:nessus"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-46143","score":0.04224,"percentile":0.90933,"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."]}