HCE1-SA-2025-0018 Important HCE 1.1 Security Fix(es): libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used. (CVE-2024-56171) libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047. (CVE-2025-24928) HCE 1.1 libxml2-2.9.1-6.hce1c.10.x86_64.rpm libxml2-devel-2.9.1-6.hce1c.10.x86_64.rpm libxml2-python-2.9.1-6.hce1c.10.x86_64.rpm