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CVE-2021-30184

Estado: ModificadaAlta (7.8)—

GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.

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 — FedoraGNU — Chess

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-30184",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
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  "published": "2021-04-07T12:15:16.437",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-120"
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  "descriptions": [
    {
      "lang": "en",
      "value": "GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc."
    },
    {
      "lang": "es",
      "value": "GNU Chess versión 6.2.7, permite a atacantes ejecutar código arbitrario por medio de datos PGN (Portable Game Notation) diseñados. Esto está relacionado con un desbordamiento de búfer en el uso de un archivo temporal .tmp.epd en las funciones cmd_pgnload y cmd_pgnreplay en el archivo frontend/cmd.cc"
    }
  ],
  "lastModified": "2026-06-17T03:49:49.807",
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