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CVE-2012-5821

Estado: ModificadaMedia (5.9)—

Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function.

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)

Canonical — Ubuntu LinuxLynx — Lynx

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2012-5821",
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "impactScore": 4.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "userInteractionRequired": false
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
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  "affected": [
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  "published": "2012-11-04T22:55:04.827",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-295"
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      "lang": "en",
      "value": "Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function."
    },
    {
      "lang": "es",
      "value": "Lynx no verifica que el certificado del servidor está firmado por una autoridad de certificación de confianza, lo que permite ataques man-in-the-middle con los que se falsifican servidores SSL mediante  certificados hechos a mano. Se trata de un problema relacionado con el uso indebido de una función GnuTLS determinada."
    }
  ],
  "lastModified": "2026-06-16T23:47:24.077",
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