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CVE-2020-25659

Estado: ModificadaMedia (5.9)—

python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext.

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)

Cryptography.io — CryptographyOracle — Communications Cloud Native Core Network Function Cloud Native Environment

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-25659",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
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  "published": "2021-01-11T16:15:15.040",
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  "vulnStatus": "Modified",
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  "descriptions": [
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      "lang": "en",
      "value": "python-cryptography 3.2 is vulnerable to Bleichenbacher timing attacks in the RSA decryption API, via timed processing of valid PKCS#1 v1.5 ciphertext."
    },
    {
      "lang": "es",
      "value": "python-cryptography versión 3.2, es vulnerable a ataques de sincronización de Bleichenbacher en la API de descifrado RSA, por medio del procesamiento cronometrado de texto cifrado PKCS#1 v1.5 válido"
    }
  ],
  "lastModified": "2026-06-17T03:07:04.600",
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