CVE-2002-1220

Status: ModifiedMedium (5)—💥 Exploit

BIND 8.3.x through 8.3.3 allows remote attackers to cause a denial of service (termination due to assertion failure) via a request for a subdomain that does not exist, with an OPT resource record with a large UDP payload size.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Base score: 5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 9.60%
Percentile among all scored CVEs: 95
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · ISC BIND 8.3.x - OPT Record Large UDP Denial of Service (11/12/2002)

Affected technologies (3)

Freebsd — Freebsd ISC — Bind Openbsd — Openbsd

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2002-1220",
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          "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,
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  "published": "2002-11-29T05:00:00.000",
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    },
    {
      "lang": "es",
      "value": "BIND 8.3.x a 8.3.3 permite a atacantes remotos causar una denegación de servicio (terminación debido a fallo en aseveración) mediante una petición para un subdominio que no existe, con un registro de recurso OPT con una carga UDP grande."
    }
  ],
  "lastModified": "2026-06-16T21:58:57.277",
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