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CVE-2021-39920

Estado: ModificadaAlta (7.5)—

NULL pointer exception in the IPPUSB dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file

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).

Tecnologías afectadas (2)

Fedoraproject — FedoraWireshark — Wireshark

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-39920",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "confidentialityImpact": "NONE"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-476"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NULL pointer exception in the IPPUSB dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file"
    },
    {
      "lang": "es",
      "value": "Una excepción de puntero NULL en el disector IPPUSB en Wireshark versiones 3.4.0 a 3.4.9 permite la denegación de servicio por medio de la inyección de paquetes o archivo de captura diseñado."
    }
  ],
  "lastModified": "2026-06-17T04:04:25.670",
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