CVE-2021-33755

Windows Hyper-V Denial of Service Vulnerability

CVSS v3 6.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33755	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10:20h2::::::x64:
	cpe:2.3:o:microsoft:windows_10:21h1::::::x64:
	cpe:2.3:o:microsoft:windows_10:1809::::::x64:
	cpe:2.3:o:microsoft:windows_10:1909::::::x64:
	cpe:2.3:o:microsoft:windows_10:2004::::::x64:
	cpe:2.3:o:microsoft:windows_server_2016:20h2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016:2004:::::::*
	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*

History

28 Dec 2023, 23:15

Type	Values Removed	Values Added
Summary	~~Windows Hyper-V Denial of Service Vulnerability This CVE ID is unique from CVE-2021-33758.~~	Windows Hyper-V Denial of Service Vulnerability
CVSS	v2 : ~~5.0~~ v3 : ~~8.6~~	v2 : 5.0 v3 : 6.3

Information

Published : 2021-07-14 18:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-33755

Mitre link : CVE-2021-33755

CVE.ORG link : CVE-2021-33755

JSON object : View

Products Affected

microsoft

windows_server_2016
windows_10
windows_server_2019

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-33755", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "secure@microsoft.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}]}, "published": "2021-07-14T18:15:10.037", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33755", "tags": ["Patch", "Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Windows Hyper-V Denial of Service Vulnerability"}, {"lang": "es", "value": "Una vulnerabilidad denegaci\u00f3n de Servicio en Windows Hyper-V. Este ID de CVE es diferente de CVE-2021-33758"}], "lastModified": "2023-12-28T23:15:18.250", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "21074553-EDF2-468D-8E79-C39851B5BC79"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "F8C238FA-B20F-40A5-B861-A8295858F4BE"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "6CF580BA-6938-40F6-9D86-F43044A6BACA"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "61F0792D-7587-4297-8EE7-D4DC3A30EE84"}, {"criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "09D9A720-8D3C-4699-AC57-CB4531E5BFEB"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4A190388-AA82-4504-9D5A-624F23268C9F"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968"}], "operator": "OR"}]}], "sourceIdentifier": "secure@microsoft.com"}