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Findings

CVE-2023-28484

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault.

Published Apr 24, 2023 · updated Oct 14, 2026 · xmlsoft libxml2

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 24, 2023 · NIST NVD

    Detected

    In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

  2. Oct 14, 2026 · NIST NVD

    Updated

    In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

Affected

  • cpe debian/debian linux10.0
  • cpe xmlsoft/libxml2version unspecified

Sources

  • CVE.orgCVE-2023-28484

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2023-28484

    30-day exploitation probability 1.2%

    first.org
  • NIST NVDCVE-2023-28484

    In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

    nvd.nist.gov

References