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CVE-2015-8803

Estado: ModificadaCrítica (9.8)—

The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8805.

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 (4)

CWE

Referencias

JSON original (NVD)

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          "value": "CWE-254"
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    },
    {
      "lang": "es",
      "value": "La función ecc_256_modp en ecc-256.c en Nettle en versiones anteriores a 3.2 no maneja correctamente la propagación del acarreo y produce una salida incorrecta en su implementación de la curva elíptica P-256 NIST, lo que permite a atacantes tener un impacto no especificado a través de vectores desconocidos, una vulnerabilidad diferente a CVE-2015-8805."
    }
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  "lastModified": "2026-06-17T00:35:16.863",
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