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CVE-2018-0809

Status: ModifiedHigh (7)—

The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843.

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-2018-0809",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft Corporation",
          "product": "Windows",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 10, versions 1703 and 1709, and Windows Server, version 1709"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-02-15T02:29:01.717",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/102933",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1040373",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0809",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/102933",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1040373",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0809",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "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": "The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka \"Windows Elevation of Privilege Vulnerability\". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843."
    },
    {
      "lang": "es",
      "value": "El kernel de Windows en Windows 10 versiones 1703 y 1709 y Windows Server, versión 1709 permite una vulnerabilidad de elevación de privilegios debido a la forma en la que se gestionan los objetos en la memoria. Esto también se conoce como \"Windows Elevation of Privilege Vulnerability\". El ID de este CVE es diferente de CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 y CVE-2018-0843."
    }
  ],
  "lastModified": "2026-06-17T01:31:42.490",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AEE2E768-0F45-46E1-B6D7-087917109D98"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "83B14968-3985-43C3-ACE5-8307196EFAE3"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5B454BFE-D3AB-4CDC-B79B-F60EA3F57DBA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}