CVE-2008-4409

Estado: ModificadaMedia (5)—

libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.

CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Puntuación base: 5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 8.53%
Percentil entre todas las CVEs puntuadas: 95
Fecha de la puntuación: 6/10/2026

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)

Xmlsoft — Libxml2

CWE

CWE-399

Referencias

JSON original (NVD)

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{
  "id": "CVE-2008-4409",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2008-10-03T17:41:40.570",
  "references": [
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00130.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "libxml2 2.7.0 and 2.7.1 does not properly handle \"predefined entities definitions\" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281."
    },
    {
      "lang": "es",
      "value": "libxml2 v2.7.0 y v2.7.1 no maneja apropiadamente \"definiciones de entidades predefinidas\" en entidades, lo cual permite a atacantes dependientes de contexto provocar una denegación de servicio (consumo de memoria y caída de aplicación), como lo demostrado por la utilización de xmllint en un determinado documento XML, una vulnerabilidad diferente a CVE-2003-1564 y CVE-2008-3281."
    }
  ],
  "lastModified": "2026-06-16T22:57:45.703",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:xmlsoft:libxml2:2.7.0:*:*:*:*:*:*:*",
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              "matchCriteriaId": "87E895B9-5AF7-4A1F-B740-B3E13DE3254E"
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            {
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            }
          ],
          "operator": "OR"
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  ],
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue did not affect the versions of libxml2 as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.",
      "lastModified": "2017-08-07T21:32:37.420",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "evaluatorSolution": "Patch Information - http://www.securityfocus.com/bid/30783/solution"
}