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CVE-2025-52891

Estado: AplazadaMedia (6.5)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Modsecurity — ModsecurityAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-52891",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52891",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-02T15:24:24.644464Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "owasp-modsecurity",
          "product": "ModSecurity",
          "versions": [
            {
              "status": "affected",
              "version": ">= 2.9.8, < 2.9.11"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-07-02T15:15:27.177",
  "references": [
    {
      "url": "https://github.com/owasp-modsecurity/ModSecurity/commit/ecd7b9736836eee391d25f35d5bd06a3ce35a45d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-gw9c-4wfm-vj3x",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "ModSecurity es un motor de firewall de aplicaciones web (WAF) multiplataforma de código abierto para Apache, IIS y Nginx. En las versiones 2.9.8 y anteriores a la 2.9.11, una etiqueta XML vacía puede causar un fallo de segmentación. Si SecParseXmlIntoArgs está activado o OnlyArgs, el tipo de solicitud es application/xml y al menos una etiqueta XML está vacía (por ejemplo, ), se produce un fallo de segmentación. Este problema se ha corregido en la versión 2.9.11. Una solución alternativa consiste en desactivar SecParseXmlIntoArgs."
    }
  ],
  "lastModified": "2026-06-17T09:37:13.520",
  "sourceIdentifier": "security-advisories@github.com"
}