CVE-2025-9714
Full vulnerability record from the local CVENow database.
Description
Uncontrolled recursion in XPath evaluation in libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions `xmlXPathRunEval`, `xmlXPathCtxtCompile`, and `xmlXPathEvalExpr` were resetting recursion depth to zero before making potentially recursive calls. When such functions were called recursively this could allow for uncontrolled recursion and lead to a stack overflow. These functions now preserve recursion depth across recursive calls, allowing recursion depth to be controlled.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2025-09-10 19:15:42.707000
Last modified
2026-10-19 17:10:00.173000
View original CVE JSON
{
"id": "CVE-2025-9714",
"sourceIdentifier": "[email protected]",
"published": "2025-09-10T19:15:42.707",
"lastModified": "2026-10-19T17:10:00.173",
"vulnStatus": "Modified",
"cveTags": [],
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"lang": "en",
"value": "Uncontrolled recursion in XPath evaluation in libxml2 up to and including version 2.9.14 allows a local attacker to cause a stack overflow via crafted expressions. XPath processing functions `xmlXPathRunEval`, `xmlXPathCtxtCompile`, and `xmlXPathEvalExpr` were resetting recursion depth to zero before making potentially recursive calls. When such functions were called recursively this could allow for uncontrolled recursion and lead to a stack overflow. These functions now preserve recursion depth across recursive calls, allowing recursion depth to be controlled."
},
{
"lang": "es",
"value": "La recursión incontrolada en la evaluación de XPath en libxml2 hasta la versión 2.9.14 inclusive permite a un atacante local causar un desbordamiento de pila mediante expresiones manipuladas. Las funciones de procesamiento de XPath 'xmlXPathRunEval', 'xmlXPathCtxtCompile' y 'xmlXPathEvalExpr' estaban restableciendo la profundidad de recursión a cero antes de realizar llamadas potencialmente recursivas. Cuando dichas funciones eran llamadas recursivamente, esto podía permitir una recursión incontrolada y conducir a un desbordamiento de pila. Estas funciones ahora preservan la profundidad de recursión a través de las llamadas recursivas, permitiendo que la profundidad de recursión sea controlada."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
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"type": "Secondary",
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"attackComplexity": "LOW",
"privilegesRequired": "NONE",
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"availabilityImpact": "HIGH"
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"configurations": [
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}