CVE-2008-1803

Estado: ModificadaAlta (9.3)—
Un error en la propiedad signedness de enteros en la función xrealloc (archivo rdesktop.c) en RDesktop versión 1.5.0, permite a atacantes remotos ejecutar código arbitrario por medio de parámetros desconocidos que desencadenan un desbordamiento en la región heap de la memoria. NOTA: el rol de la función channel_process no fue especificado por el investigador original.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Puntuación base: 9.3
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 6.74%
Percentil entre todas las CVEs puntuadas: 94
Fecha de la puntuación: 15/10/2026
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)

Rdesktop — Rdesktop
CWE

CWE-189
Referencias

JSON original (NVD)

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{
  "id": "CVE-2008-1803",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": true,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
      ]
    }
  ],
  "published": "2008-05-12T22:20:00.000",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows remote attackers to execute arbitrary code via unknown parameters that trigger a heap-based overflow.  NOTE: the role of the channel_process function was not specified by the original researcher."
    },
    {
      "lang": "es",
      "value": "Un error en la propiedad signedness de enteros en la función xrealloc (archivo rdesktop.c) en RDesktop versión 1.5.0,  permite a atacantes remotos ejecutar código arbitrario por medio de parámetros desconocidos que desencadenan un desbordamiento en la región heap de la memoria. NOTA: el rol de la función channel_process no fue especificado por el investigador original."
    }
  ],
  "lastModified": "2026-06-16T22:52:31.113",
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    {
      "nodes": [
        {
          "negate": false,
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}