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CVE-2007-6043

Estado: ModificadaAlta (7.1)—

The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898.

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 (1)

Microsoft — Windows 2000

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2007-6043",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-11-20T19:46:00.000",
  "references": [
    {
      "url": "http://eprint.iacr.org/2007/419.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/26495",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://eprint.iacr.org/2007/419.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.computerworld.com.au/index.php/id%3B1165210682%3Bfp%3B2%3Bfpid%3B1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "http://www.securityfocus.com/bid/26495",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The CryptGenRandom function in Microsoft Windows 2000 generates predictable values, which makes it easier for context-dependent attackers to reduce the effectiveness of cryptographic mechanisms, as demonstrated by attacks on (1) forward security and (2) backward security, related to use of eight instances of the RC4 cipher, and possibly a related issue to CVE-2007-3898."
    },
    {
      "lang": "es",
      "value": "La función CryptGenRandom en Microsoft Windows 2000 genera valores predecibles, lo cual hace más fácil para un atacantes dependiente del contexto reducir la efectividad de mecanismos criptográficos, como se demostró por un ataque sobre (1) forward security y (2) backward security, relacionado con el uso de ocho instancias de RC4 cipher, y posiblemente relacionado con el asunto CVE-2007-3898."
    }
  ],
  "lastModified": "2026-06-16T22:47:18.927",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "cve@mitre.org"
}