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CVE-2017-8504

Status: ModifiedMedium (4.3)—

Microsoft Edge in Windows 10 1607 and 1703, and Windows Server 2016 allows an attacker to read the URL of a cross-origin request when the Microsoft Edge Fetch API incorrectly handles a filtered response type, aka "Microsoft Edge Information Disclosure Vulnerability". This CVE ID is unique from CVE-2017-8498.

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)

Microsoft — Edge

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-8504",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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": true
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    "cvssMetricV30": [
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
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          "confidentialityImpact": "LOW"
        },
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  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft Corporation",
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          "versions": [
            {
              "status": "affected",
              "version": "Microsoft Windows 10 1607 and 1703, and Windows Server 2016."
            }
          ]
        }
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    }
  ],
  "published": "2017-06-15T01:29:03.693",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/98892",
      "tags": [
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      "source": "secure@microsoft.com"
    },
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      "source": "secure@microsoft.com"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8504",
      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Edge in Windows 10 1607 and 1703, and Windows Server 2016 allows an attacker to read the URL of a cross-origin request when the Microsoft Edge Fetch API incorrectly handles a filtered response type, aka \"Microsoft Edge Information Disclosure Vulnerability\". This CVE ID is unique from CVE-2017-8498."
    },
    {
      "lang": "es",
      "value": "Microsoft Edge en Windows 10 versión 1607 y 1703, y Windows Server 2016, permite a un atacante leer la dirección URL de una petición entre orígenes cuando la API Fetch de Microsoft Edge maneja inapropiadamente un tipo de respuesta filtrada, también se conoce como \"Microsoft Edge Information Disclosure Vulnerability\". El ID de este CVE es diferente de CVE-2017-8498."
    }
  ],
  "lastModified": "2026-06-17T01:26:29.050",
  "configurations": [
    {
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  "sourceIdentifier": "secure@microsoft.com"
}