CVE-2025-9714

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.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gitlab.gnome.org/GNOME/libxml2/-/commit/677a42645ef22b5a50741bad5facf9d8a8bc6d21	Patch
https://lists.debian.org/debian-lts-announce/2025/09/msg00035.html
https://cert-portal.siemens.com/productcert/html/ssa-577017.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

History

19 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) 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.

Information

Published : 2025-09-10 19:15

Updated : 2026-10-19 17:10

NVD link : CVE-2025-9714

Mitre link : CVE-2025-9714

CVE.ORG link : CVE-2025-9714

JSON object : View

Products Affected

xmlsoft

libxml2

CWE

CWE-674

Uncontrolled Recursion

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"dpkg"}, {"status": "affected", "version": "0", "lessThan": "2.9.4+dfsg1-6.1ubuntu1.9+esm5", "versionType": "dpkg"}, {"status": "affected", "version": "0", "lessThan": "2.9.3+dfsg1-1ubuntu0.7+esm10", "versionType": "dpkg"}, {"status": "affected", "version": "0", "lessThan": "2.9.1+dfsg1-3ubuntu4.13+esm9", "versionType": "dpkg"}], "platforms": ["Linux"], "packageName": "libxml2", "programFiles": ["xpath.c"], "collectionURL": "https://gitlab.gnome.org/GNOME/libxml2", "defaultStatus": "unaffected"}]}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "affectedData": [{"vendor": "Siemens", "product": "RUGGEDCOM ROX MX5000", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.17.1", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "RUGGEDCOM ROX MX5000RE", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.17.1", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "RUGGEDCOM ROX 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