CVE-2002-1221

Estado: ModificadaMedia (5)—
BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.
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: 7.57%
Percentil entre todas las CVEs puntuadas: 94
Fecha de la puntuación: 7/10/2026
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 (3)

Freebsd — Freebsd ISC — Bind Openbsd — Openbsd
CWE

NVD-CWE-Other
Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2002-1221",
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          "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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        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
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  "published": "2002-11-29T05:00:00.000",
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      "lang": "en",
      "value": "BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference."
    },
    {
      "lang": "es",
      "value": "BIND 8.x a 8.3.3 permite a atacantes remotos causar una denegación de servicio (caída) mediante elementos registro de recurso (RR) SIG con fecha de expiració inválida, que son eliminados de la la base de datos interna de BIND y luego causan una desreferencia a nulo."
    }
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  "lastModified": "2026-06-16T21:58:57.433",
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