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

Configurations

Configuration 1 (hide)

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

History

17 Sep 2025, 21:13

Type	Values Removed	Values Added
CPE		cpe:2.3:a:xmlsoft:libxml2::::::::
References	~~() https://gitlab.gnome.org/GNOME/libxml2/-/commit/677a42645ef22b5a50741bad5facf9d8a8bc6d21 -~~	() https://gitlab.gnome.org/GNOME/libxml2/-/commit/677a42645ef22b5a50741bad5facf9d8a8bc6d21 - Patch
First Time		Xmlsoft Xmlsoft libxml2

10 Sep 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-09-10 19:15

Updated : 2025-09-17 21:13

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

{"id": "CVE-2025-9714", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.5}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-09-10T19:15:42.707", "references": [{"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/677a42645ef22b5a50741bad5facf9d8a8bc6d21", "tags": ["Patch"], "source": "security@ubuntu.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-674"}]}], "descriptions": [{"lang": "en", "value": "Uncontrolled recursion in\u00a0XPath evaluation\u00a0in 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."}], "lastModified": "2025-09-17T21:13:10.787", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A6A3E8A-FBA5-4AA0-B9D8-F2536DB076F0", "versionEndExcluding": "2.10.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}