HCE2-SA-2025-0155 Important HCE 2.0 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 NULL pointer dereference in xmlPatMatch in pattern.c. (CVE-2025-27113) In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. 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-2025-32415) 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 2.0 libxml2-2.9.12-5.r33.hce2.aarch64.rpm libxml2-devel-2.9.12-5.r33.hce2.aarch64.rpm libxml2-help-2.9.12-5.r33.hce2.noarch.rpm python3-libxml2-2.9.12-5.r33.hce2.aarch64.rpm libxml2-2.9.12-5.r33.hce2.x86_64.rpm libxml2-devel-2.9.12-5.r33.hce2.x86_64.rpm python3-libxml2-2.9.12-5.r33.hce2.x86_64.rpm