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CVE-2023-25139

Estado: ModificadaCrítica (9.8)—

sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.

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 (1)

GNU — Glibc

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-25139",
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          "options": [
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              "exploitation": "none"
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-03-26T14:48:30.307657Z"
        }
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "published": "2023-02-03T06:15:09.523",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-787"
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      "value": "sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes."
    },
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      "value": "sprintf en la librería GNU C (glibc) 2.37 tiene un desbordamiento del búfer (escritura fuera de los límites) en algunas situaciones con un tamaño de búfer correcto. Esto no tiene relación con CWE-676. Puede escribir más allá de los límites del búfer de destino cuando intenta escribir una representación de cadena rellenada y separada por miles de un número, si al búfer se le asigna el tamaño exacto requerido para representar ese número como una cadena. Por ejemplo, 1.234.567 (con relleno de 13) se desborda en dos bytes."
    }
  ],
  "lastModified": "2026-06-17T05:40:45.400",
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