CVE-2014-8642

Estado: ModificadaMedia (4.3)—

Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not consider the id-pkix-ocsp-nocheck extension in deciding whether to trust an OCSP responder, which makes it easier for remote attackers to obtain sensitive information by sniffing the network during a session in which there was an incorrect decision to accept a compromised and revoked certificate.

CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
Puntuación base: 4.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.50%
Percentil entre todas las CVEs puntuadas: 73
Fecha de la puntuación: 6/10/2026

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 (3)

Mozilla — Firefox Mozilla — Seamonkey Opensuse — Opensuse

CWE

CWE-310

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-8642",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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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,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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  "published": "2015-01-14T11:59:10.633",
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          "value": "CWE-310"
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      "value": "Mozilla Firefox before 35.0 and SeaMonkey before 2.32 do not consider the id-pkix-ocsp-nocheck extension in deciding whether to trust an OCSP responder, which makes it easier for remote attackers to obtain sensitive information by sniffing the network during a session in which there was an incorrect decision to accept a compromised and revoked certificate."
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox anterior a 35.0 y SeaMonkey anterior a 2.32 no consideran la extensión id-pkix-ocsp-nocheck cuando deciden si confían de un contestador OCSP, lo que facilita a atacantes remotos obtener información sensible mediante la lectura de la red durante una sesión en la cual hubo una decisión incorrecta para aceptar un certificado comprometido y revocado."
    }
  ],
  "lastModified": "2026-06-17T00:17:05.200",
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