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CVE-2018-8463

Status: ModifiedHigh (7.4)—💥 Exploit

An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8469.

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Microsoft — Edge

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-8463",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "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": "CHANGED",
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "source": "secure@microsoft.com",
      "affectedData": [
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          "vendor": "Microsoft",
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          "versions": [
            {
              "status": "affected",
              "version": "Windows 10 Version 1803 for 32-bit Systems"
            },
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              "version": "Windows 10 Version 1803 for x64-based Systems"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-09-13T00:29:06.160",
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    },
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      ],
      "source": "secure@microsoft.com"
    },
    {
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      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/105260",
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    },
    {
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      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/45502/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka \"Microsoft Edge Elevation of Privilege Vulnerability.\" This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8469."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios en Microsoft Edge que podría permitir que un atacante escape del sandbox AppContainer en el navegador. Esto también se conoce como \"Microsoft Edge Elevation of Privilege Vulnerability\". Esto afecta a Microsoft Edge. El ID de este CVE es diferente de CVE-2018-8469."
    }
  ],
  "lastModified": "2026-06-17T02:04:55.753",
  "configurations": [
    {
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        {
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          "cpeMatch": [
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          "operator": "OR"
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  "sourceIdentifier": "secure@microsoft.com"
}