GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2020-0661 (GCVE-0-2020-0661)

Vulnerability from cvelistv5 – Published: 2020-02-11 21:22 – Updated: 2024-08-04 06:11
VLAI
Summary
A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'. This CVE ID is unique from CVE-2020-0751.
Severity
6.8 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
  • Denial of Service
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Windows Affected: 10 Version 1809 for x64-based Systems
Affected: 10 Version 1607 for x64-based Systems
guessed Create a notification for this product.
Microsoft Windows Server Affected: 2019
Affected: 2019 (Core installation)
Affected: 2016
Affected: 2016 (Core installation)
guessed Create a notification for this product.
Microsoft Windows Server, version 1903 (Server Core installation) Affected: unspecified
guessed Create a notification for this product.
Microsoft Windows 10 Version 1909 for x64-based Systems Affected: unspecified
guessed Create a notification for this product.
Microsoft Windows Server, version 1909 (Server Core installation) Affected: unspecified
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T06:11:05.322Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Windows",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "10 Version 1809 for x64-based Systems"
            },
            {
              "status": "affected",
              "version": "10 Version 1607 for x64-based Systems"
            }
          ]
        },
        {
          "product": "Windows Server",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "2019"
            },
            {
              "status": "affected",
              "version": "2019  (Core installation)"
            },
            {
              "status": "affected",
              "version": "2016"
            },
            {
              "status": "affected",
              "version": "2016  (Core installation)"
            }
          ]
        },
        {
          "product": "Windows Server, version 1903 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "product": "Windows 10 Version 1909 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "product": "Windows Server, version 1909 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027. This CVE ID is unique from CVE-2020-0751."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Denial of Service",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-11T21:22:48.000Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secure@microsoft.com",
          "ID": "CVE-2020-0661",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Windows",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "10 Version 1809 for x64-based Systems"
                          },
                          {
                            "version_value": "10 Version 1607 for x64-based Systems"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Windows Server",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "2019"
                          },
                          {
                            "version_value": "2019  (Core installation)"
                          },
                          {
                            "version_value": "2016"
                          },
                          {
                            "version_value": "2016  (Core installation)"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Windows Server, version 1903 (Server Core installation)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": ""
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Windows 10 Version 1909 for x64-based Systems",
                      "version": {
                        "version_data": [
                          {
                            "version_value": ""
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Windows Server, version 1909 (Server Core installation)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": ""
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Microsoft"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027. This CVE ID is unique from CVE-2020-0751."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661",
              "refsource": "MISC",
              "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2020-0661",
    "datePublished": "2020-02-11T21:22:48.000Z",
    "dateReserved": "2019-11-04T00:00:00.000Z",
    "dateUpdated": "2024-08-04T06:11:05.322Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-0661",
      "date": "2026-09-18",
      "epss": "0.01632",
      "percentile": "0.75169"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "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_10:1809:*:*:*:*:*:x64:*",
                  "matchCriteriaId": "6CF580BA-6938-40F6-9D86-F43044A6BACA",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*",
                  "matchCriteriaId": "61F0792D-7587-4297-8EE7-D4DC3A30EE84",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*",
                  "matchCriteriaId": "5B921FDB-8E7D-427E-82BE-4432585080CF",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C253A63F-03AB-41CB-A03A-B2674DEA98AA",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027. This CVE ID is unique from CVE-2020-0751."
        },
        {
          "lang": "es",
          "value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio cuando Microsoft Hyper-V en un servidor host no puede comprobar apropiadamente la entrada de un usuario privilegiado en un sistema operativo invitado, tambi\u00e9n se conoce como \"Windows Hyper-V Denial of Service Vulnerability\". Este ID de CVE es diferente de CVE-2020-0751."
        }
      ],
      "id": "CVE-2020-0661",
      "lastModified": "2024-11-21T04:53:56.990",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "ADJACENT_NETWORK",
              "authentication": "SINGLE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 5.5,
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "vectorString": "AV:A/AC:L/Au:S/C:N/I:N/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 5.1,
            "impactScore": 6.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "ADJACENT_NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 2.3,
            "impactScore": 4.0,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2020-02-11T22:15:13.913",
      "references": [
        {
          "source": "secure@microsoft.com",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
        }
      ],
      "sourceIdentifier": "secure@microsoft.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-20"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "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_10:1809:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "6CF580BA-6938-40F6-9D86-F43044A6BACA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "61F0792D-7587-4297-8EE7-D4DC3A30EE84",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5B921FDB-8E7D-427E-82BE-4432585080CF",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C253A63F-03AB-41CB-A03A-B2674DEA98AA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system, aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027. This CVE ID is unique from CVE-2020-0751."
          },
          {
            "lang": "es",
            "value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio cuando Microsoft Hyper-V en un servidor host no puede comprobar apropiadamente la entrada de un usuario privilegiado en un sistema operativo invitado, tambi\u00e9n se conoce como \"Windows Hyper-V Denial of Service Vulnerability\". Este ID de CVE es diferente de CVE-2020-0751."
          }
        ],
        "id": "CVE-2020-0661",
        "lastModified": "2024-11-21T04:53:56.990",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "ADJACENT_NETWORK",
                "authentication": "SINGLE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 5.5,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:A/AC:L/Au:S/C:N/I:N/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 5.1,
              "impactScore": 6.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.8,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.3,
              "impactScore": 4.0,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2020-02-11T22:15:13.913",
        "references": [
          {
            "source": "secure@microsoft.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0661"
          }
        ],
        "sourceIdentifier": "secure@microsoft.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.