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CVE-2018-8400

Status: ModifiedHigh (7.8)—

An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka "DirectX Graphics Kernel Elevation of Privilege Vulnerability." This affects Windows 10 Servers, Windows 10. This CVE ID is unique from CVE-2018-8401, CVE-2018-8405, CVE-2018-8406.

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 (2)

Microsoft — Windows 10Microsoft — Windows Server 2016

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-8400",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows 10 Servers",
          "versions": [
            {
              "status": "affected",
              "version": "version 1709  (Server Core Installation)"
            },
            {
              "status": "affected",
              "version": "version 1803  (Server Core Installation)"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 10",
          "versions": [
            {
              "status": "affected",
              "version": "Version 1709 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Version 1709 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Version 1803 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Version 1803 for x64-based Systems"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-15T17:29:09.347",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/105005",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1041461",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8400",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/105005",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1041461",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8400",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-404"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists when the DirectX Graphics Kernel (DXGKRNL) driver improperly handles objects in memory, aka \"DirectX Graphics Kernel Elevation of Privilege Vulnerability.\" This affects Windows 10 Servers, Windows 10. This CVE ID is unique from CVE-2018-8401, CVE-2018-8405, CVE-2018-8406."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios cuando el controlador DirectX Graphics Kernel (DXGKRNL) gestiona incorrectamente los objetos en la memoria. Esto también se conoce como \"DirectX Graphics Kernel Elevation of Privilege Vulnerability\". Esto afecta a Windows 10 Servers y Windows 10. El ID de este CVE es diferente de CVE-2018-8401, CVE-2018-8405 y CVE-2018-8406."
    }
  ],
  "lastModified": "2026-06-17T02:04:46.870",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "83B14968-3985-43C3-ACE5-8307196EFAE3"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "7CB85C75-4D35-480E-843D-60579EC75FCB"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "5B454BFE-D3AB-4CDC-B79B-F60EA3F57DBA"
            },
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              "vulnerable": true,
              "matchCriteriaId": "CAACE735-003E-4ACB-A82E-C0CF97D7F013"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "secure@microsoft.com"
}