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CVE-2018-8235

Status: ModifiedMedium (4.3)—

A security feature bypass vulnerability exists when Microsoft Edge improperly handles requests of different origins, aka "Microsoft Edge Security Feature Bypass Vulnerability." This affects Microsoft Edge.

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-2018-8235",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "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",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Edge",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 10 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1607 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1607 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1703 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1703 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1709 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1709 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1803 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 10 Version 1803 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Windows Server 2016"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-06-14T12:29:02.087",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/104343",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1041097",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8235",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/104343",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1041097",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8235",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A security feature bypass vulnerability exists when Microsoft Edge improperly handles requests of different origins, aka \"Microsoft Edge Security Feature Bypass Vulnerability.\" This affects Microsoft Edge."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de omisión de la característica de seguridad cuando Microsoft Edge gestiona de manera incorrecta las peticiones de diferentes orígenes. Esto también se conoce como \"Microsoft Edge Security Feature Bypass Vulnerability\". Esto afecta a Microsoft Edge."
    }
  ],
  "lastModified": "2026-06-17T02:04:29.087",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "77D197D7-57FB-4898-8C70-B19D5F0D5BE0"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "AEE2E768-0F45-46E1-B6D7-087917109D98"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "83B14968-3985-43C3-ACE5-8307196EFAE3"
            },
            {
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              "vulnerable": false,
              "matchCriteriaId": "7CB85C75-4D35-480E-843D-60579EC75FCB"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
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              "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"
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          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}