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CVE-2012-5821

Status: ModifiedMedium (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

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (2)

Canonical — Ubuntu LinuxLynx — Lynx

CWEs

References

Raw JSON (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",
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          "availabilityImpact": "NONE",
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        "obtainAllPrivilege": false,
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  "published": "2012-11-04T22:55:04.827",
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  "vulnStatus": "Modified",
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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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