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.
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2023-28484",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-28484",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28484",
"published": "2023-04-24T21:15:09.180Z",
"modified": "2025-05-30T20:15:31.550Z",
"imported": "2025-10-28T18:09:09.631Z"
}
]
}