FKIE_CVE-2020-0909
Vulnerability from fkie_nvd - Published: 2020-05-21 23:15 - Updated: 2026-08-19 17:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/
Summary
A denial of service vulnerability exists when Hyper-V on a Windows Server fails to properly handle specially crafted network packets.
To exploit the vulnerability, an attacker would send specially crafted network packets to the Hyper-V Server.
The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to properly handle these network packets.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| microsoft | windows_10 | - | |
| microsoft | windows_10 | 1607 | |
| microsoft | windows_10 | 1709 | |
| microsoft | windows_10 | 1803 | |
| microsoft | windows_10 | 1809 | |
| microsoft | windows_10 | 1903 | |
| microsoft | windows_10 | 1909 | |
| microsoft | windows_7 | - | |
| microsoft | windows_8.1 | - | |
| microsoft | windows_server_2008 | - | |
| microsoft | windows_server_2008 | r2 | |
| microsoft | windows_server_2012 | - | |
| microsoft | windows_server_2012 | r2 | |
| microsoft | windows_server_2016 | - | |
| microsoft | windows_server_2016 | 1803 | |
| microsoft | windows_server_2016 | 1903 | |
| microsoft | windows_server_2016 | 1909 | |
| microsoft | windows_server_2019 | - |
{
"affected": [
{
"affectedData": [
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1507",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.10240.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1607",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1709",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1803",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"product": "Windows 10 Version 1903 for x64-based Systems",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 10 Version 1909",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 7 Service Pack 1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.1.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows 8.1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.3.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2008 R2 Service Pack 1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.1.7601.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.1.7601.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2008 Service Pack 2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.0.6003.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2008 Service Pack 2 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.0.6003.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.2.9200.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.2.9200.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.3.9600.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "6.3.9600.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server, version 1803 (Server Core Installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server, version 1903 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server, version 1909 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "publication",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
}
],
"source": "secure@microsoft.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*",
"matchCriteriaId": "084984D5-D241-497B-B118-50C6C1EAD468",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*",
"matchCriteriaId": "897A48D7-FCA1-4560-AFBB-718AF19BA3A2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:x64:*",
"matchCriteriaId": "1B3308A0-1699-4A4A-8D6B-AB4E4C825C95",
"vulnerable": true
},
{
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"matchCriteriaId": "1981BA0D-0920-40C0-8A6A-5D5A1B221560",
"vulnerable": true
},
{
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"matchCriteriaId": "6CF580BA-6938-40F6-9D86-F43044A6BACA",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:x64:*",
"matchCriteriaId": "2487AF09-F003-482A-BD42-31F6AEAA033F",
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},
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"matchCriteriaId": "61F0792D-7587-4297-8EE7-D4DC3A30EE84",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*",
"matchCriteriaId": "7FE8B00B-4F39-4755-A323-8AD71F5E3EBE",
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},
{
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"matchCriteriaId": "C936FD4F-959C-43B8-9917-E2A0DF4A8793",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*",
"matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
"matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",
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},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
"matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074",
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},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
"matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
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},
{
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{
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A denial of service vulnerability exists when Hyper-V on a Windows Server fails to properly handle specially crafted network packets.\nTo exploit the vulnerability, an attacker would send specially crafted network packets to the Hyper-V Server.\nThe security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to properly handle these network packets."
},
{
"lang": "es",
"value": "Existe una vulnerabilidad de denegaci\u00f3n de servicio cuando Hyper-V en un Windows Server falla al manejar apropiadamente paquetes de red especialmente dise\u00f1ados. Para explotar la vulnerabilidad, un atacante enviar\u00eda paquetes de red especialmente dise\u00f1ados hacia el Hyper-V Server. La actualizaci\u00f3n de seguridad aborda la vulnerabilidad al resolver las condiciones en las que Hyper-V presentar\u00eda un fallo al manejar apropiadamente estos paquetes de red., tambi\u00e9n se conoce como \u0027Windows Hyper-V Denial of Service Vulnerability\u0027."
}
],
"id": "CVE-2020-0909",
"lastModified": "2026-08-19T17:17:07.417",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "secure@microsoft.com",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
},
"published": "2020-05-21T23:15:11.273",
"references": [
{
"source": "secure@microsoft.com",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-0909"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0909"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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