{"cve":"CVE-2022-43680","nvd":{"published":"2022-10-24T14:15:53.323","modified":"2026-10-14T19:16:53.627","status":"Modified","description":"In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-416"],"references":["http://www.openwall.com/lists/oss-security/2023/12/28/5","http://www.openwall.com/lists/oss-security/2024/01/03/5","https://github.com/libexpat/libexpat/issues/649","https://github.com/libexpat/libexpat/pull/616","https://github.com/libexpat/libexpat/pull/650"],"products":["debian:debian_linux","fedoraproject:fedora","libexpat_project:libexpat","netapp:active_iq_unified_manager","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500s_firmware","netapp:h700s_firmware","netapp:hci_compute_node_firmware","netapp:oncommand_workflow_automation","netapp:solidfire_\\&_hci_management_node"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2022-43680","score":0.03182,"percentile":0.87979,"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."]}