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CVE-2009-4501

Estado: ModificadaMedia (5)—💥 Exploit

La función zbx_get_next_field de libs/zbxcommon/str.c de Zabbix Server anterior a v1.6.8 permite a atacantes remotos provocar una denegación de servicio (caída) a través de una solicitud que carece de los separadores esperados; esto lanza una referencia a puntero nulo (NULL), como se ha demostrado al utilizar la palabra clave Command.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Zabbix — Zabbix

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2009-4501",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "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"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "userInteractionRequired": false
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              "version": "n/a"
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  "published": "2009-12-31T18:30:01.767",
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    {
      "url": "http://secunia.com/advisories/37740",
      "tags": [
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      "source": "cve@mitre.org"
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      "url": "http://secunia.com/advisories/37740",
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          "value": "CWE-119"
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    },
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      "lang": "es",
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  "lastModified": "2026-06-16T23:13:47.237",
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