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CVE-2007-5355

Status: ModifiedMedium (5.8)—

The Web Proxy Auto-Discovery (WPAD) feature in Microsoft Internet Explorer 6 and 7, when a primary DNS suffix with three or more components is configured, resolves an unqualified wpad hostname in a second-level domain outside this configured DNS domain, which allows remote WPAD servers to conduct man-in-the-middle (MITM) attacks.

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 (1)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2007-5355",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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  },
  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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    }
  ],
  "published": "2007-12-05T11:46:00.000",
  "references": [
    {
      "url": "http://secunia.com/advisories/27901",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://support.microsoft.com/kb/945713",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.microsoft.com/technet/security/advisory/945713.mspx",
      "source": "secure@microsoft.com"
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    {
      "url": "http://www.securityfocus.com/bid/26686",
      "source": "secure@microsoft.com"
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    {
      "url": "http://www.securitytracker.com/id?1019033",
      "source": "secure@microsoft.com"
    },
    {
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          "lang": "en",
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      "lang": "en",
      "value": "The Web Proxy Auto-Discovery (WPAD) feature in Microsoft Internet Explorer 6 and 7, when a primary DNS suffix with three or more components is configured, resolves an unqualified wpad hostname in a second-level domain outside this configured DNS domain, which allows remote WPAD servers to conduct man-in-the-middle (MITM) attacks."
    },
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      "lang": "es",
      "value": "La característica Web Proxy Auto-Discovery en Microsoft Internet Explorer 6 y 7, cuando un sufijo de DNS primario con tres o más componentes es configurado, resuelve nombre de host wpad no cualificado en un dominio de segundo nivel fuera de este dominio configurado en el DNS, lo cual permite a servidores WPAD llevar a cabo ataques de hombre en el medio (MITM, man-in-the-middle)."
    }
  ],
  "lastModified": "2026-06-16T22:45:57.270",
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