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CVE-2024-56171

Quick assessment

Affected
xmlsoft libxml2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libxml2是GNOME开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。 libxml2 2.12.10之前版本和2.13.6之前版本存在安全漏洞，该漏洞源于xmlschemas.c中的释放后重用问题，可能通过特制XML文档或模式利用。

CVSS 7.8 · High EPSS 1.18% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-56171

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
libxml2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libxml2是GNOME开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。 libxml2 2.12.10之前版本和2.13.6之前版本存在安全漏洞，该漏洞源于xmlschemas.c中的释放后重用问题，可能通过特制XML文档或模式利用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
xmlsoft libxml2 0 ~ 2.12.10 -

II. Public POCs for CVE-2024-56171

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III. Intelligence Information for CVE-2024-56171

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Vendor Advisories for CVE-2024-56171 (1)

Same Patch Batch · xmlsoft · 2025-02-18 · 3 CVEs total

CVE-2025-24928 7.8 HIGH libxml2 安全漏洞
CVE-2025-27113 2.9 LOW libxml2 安全漏洞

IV. Related Vulnerabilities

Same product: libxml2
Same vendor: xmlsoft
Same weakness: CWE-416

V. Comments for CVE-2024-56171

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