CVE-2018-0965

Status: ModifiedHigh (8.4)—

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka "Windows Hyper-V Remote Code Execution Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8439.

CVSS

Version: 3.0
Vector: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Base score: 8.4

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 5.05%
Percentile among all scored CVEs: 92
Score date: 10/18/2026

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 10 Microsoft — Windows Server 2016

CWEs

CWE-20

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-0965",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 5.1,
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        "obtainOtherPrivilege": false,
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          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.7
      }
    ]
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  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2016",
          "versions": [
            {
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              "version": "(Server Core installation)"
            }
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        {
          "vendor": "Microsoft",
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          "versions": [
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              "status": "affected",
              "version": "Version 1607 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "Version 1703 for x64-based Systems"
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              "version": "version 1803  (Server Core Installation)"
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  "published": "2018-09-13T00:29:00.287",
  "references": [
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      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1041624",
      "tags": [
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        "VDB Entry"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0965",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/105229",
      "tags": [
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        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securitytracker.com/id/1041624",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0965",
      "tags": [
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        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka \"Windows Hyper-V Remote Code Execution Vulnerability.\" This affects Windows Server 2016, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2018-8439."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de ejecución remota de código cuando Windows Hyper-V, en un servidor host valida incorrectamente entradas de un usuario autenticado en un sistema operativo invitado. Esto también se conoce como \"Windows Hyper-V Remote Code Execution Vulnerability\". Esto afecta a Windows Server 2016, Windows 10 y Windows 10 Servers. El ID de este CVE es diferente de CVE-2018-8439."
    }
  ],
  "lastModified": "2026-06-17T01:32:01.810",
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    {
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  "sourceIdentifier": "secure@microsoft.com"
}