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I. Basic Information for CVE-2025-52891
Vulnerability Information

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Vulnerability Title
ModSecurity empty XML tag causes segmentation fault
Source: NVD (National Vulnerability Database)
Vulnerability Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.8 to before 2.9.11, an empty XML tag can cause a segmentation fault. If SecParseXmlIntoArgs is set to On or OnlyArgs, and the request type is application/xml, and at least one XML tag is empty (eg <foo></foo>), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
ModSecurity 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ModSecurity是OWASP ModSecurity开源的一个开源、跨平台的web应用程序防火墙(WAF)引擎。 ModSecurity 2.9.8至2.9.11之前版本存在输入验证错误漏洞,该漏洞源于空XML标签可能导致分段错误。
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
VendorProductAffected VersionsCPESubscribe
owasp-modsecurityModSecurity >= 2.9.8, < 2.9.11 -
II. Public POCs for CVE-2025-52891
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III. Intelligence Information for CVE-2025-52891
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