CVE-2020-0646 (GCVE-0-2020-0646)

Vulnerability from cvelistv5 – Published: 2020-01-14 23:11 – Updated: 2025-10-21 23:35
VLAI?
Summary
A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.
CWE
  • Remote Code Execution
Assigner
Impacted products
Vendor Product Version
Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Affected: Windows 7 for 32-bit Systems Service Pack 1
Affected: Windows 7 for x64-based Systems Service Pack 1
Affected: Windows 8.1 for 32-bit systems
Affected: Windows 8.1 for x64-based systems
Affected: Windows RT 8.1
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Affected: Windows Server 2012
Affected: Windows Server 2012 (Server Core installation)
Affected: Windows Server 2012 R2
Affected: Windows Server 2012 R2 (Server Core installation)
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    Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Affected: Windows 10 Version 1607 for 32-bit Systems
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows RT 8.1 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2 Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation) Affected: 1903
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 4.6 Affected: Windows Server 2008 for 32-bit Systems Service Pack 2
Affected: Windows Server 2008 for x64-based Systems Service Pack 2
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    Microsoft Microsoft .NET Framework 3.0 Affected: Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
Affected: Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2
Affected: Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
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    Microsoft Microsoft .NET Framework 3.5 Affected: Windows 10 Version 1607 for 32-bit Systems
Affected: Windows 8.1 for 32-bit systems
Affected: Windows 8.1 for x64-based systems
Affected: Windows Server 2012
Affected: Windows Server 2012 (Server Core installation)
Affected: Windows Server 2012 R2
Affected: Windows Server 2012 R2 (Server Core installation)
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    Microsoft Microsoft .NET Framework 3.5.1 Affected: Windows 7 for 32-bit Systems Service Pack 1
Affected: Windows 7 for x64-based Systems Service Pack 1
Affected: Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
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    Microsoft Microsoft .NET Framework 4.5.2 Affected: Windows 7 for 32-bit Systems Service Pack 1
Affected: Windows 7 for x64-based Systems Service Pack 1
Affected: Windows 8.1 for 32-bit systems
Affected: Windows 8.1 for x64-based systems
Affected: Windows RT 8.1
Affected: Windows Server 2008 for 32-bit Systems Service Pack 2
Affected: Windows Server 2008 for x64-based Systems Service Pack 2
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1
Affected: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Affected: Windows Server 2012
Affected: Windows Server 2012 (Server Core installation)
Affected: Windows Server 2012 R2
Affected: Windows Server 2012 R2 (Server Core installation)
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems Affected: unspecified
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    Microsoft Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 Affected: unspecified
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Show details on NVD website

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            {
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            {
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          "versions": [
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              "status": "affected",
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          "product": "Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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          "product": "Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems",
          "vendor": "Microsoft",
          "versions": [
            {
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        {
          "product": "Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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        },
        {
          "product": "Microsoft .NET Framework 4.8 on Windows Server 2016",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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        },
        {
          "product": "Microsoft .NET Framework 4.8 on Windows Server 2016  (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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        {
          "product": "Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1",
          "vendor": "Microsoft",
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          "product": "Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
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        {
          "product": "Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
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          "product": "Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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          ]
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        {
          "product": "Microsoft .NET Framework 4.8 on Windows RT 8.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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          "product": "Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
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          "product": "Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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        {
          "product": "Microsoft .NET Framework 4.8 on Windows Server 2012",
          "vendor": "Microsoft",
          "versions": [
            {
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          "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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            }
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          "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 R2",
          "vendor": "Microsoft",
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            {
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          "product": "Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
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          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019  (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "1903"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
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          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019  (Server Core installation)",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 4.6",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "Windows Server 2008 for 32-bit Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 for x64-based Systems Service Pack 2"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.0",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 10 Version 1607 for 32-bit Systems"
            },
            {
              "status": "affected",
              "version": "Windows 8.1 for 32-bit systems"
            },
            {
              "status": "affected",
              "version": "Windows 8.1 for x64-based systems"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012 (Server Core installation)"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012 R2"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012 R2 (Server Core installation)"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 3.5.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 7 for 32-bit Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows 7 for x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)"
            }
          ]
        },
        {
          "product": "Microsoft .NET Framework 4.5.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "Windows 7 for 32-bit Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows 7 for x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows 8.1 for 32-bit systems"
            },
            {
              "status": "affected",
              "version": "Windows 8.1 for x64-based systems"
            },
            {
              "status": "affected",
              "version": "Windows RT 8.1"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 for 32-bit Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 for x64-based Systems Service Pack 2"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1"
            },
            {
              "status": "affected",
              "version": "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012 (Server Core installation)"
            },
            {
              "status": "affected",
              "version": "Windows Server 2012 R2"
            },
            {
              "status": "affected",
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4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems\"}, {\"version\": {\"version_data\": [{\"version_value\": \"\"}]}, \"product_name\": \"Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016\"}]}, \"vendor_name\": \"Microsoft\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646\", \"name\": \"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646\", \"refsource\": \"MISC\"}, {\"url\": \"http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html\", \"name\": \"http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka \u0027.NET Framework Remote Code Execution Injection Vulnerability\u0027.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"Remote Code Execution\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2020-0646\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"secure@microsoft.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2020-0646\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:35:53.664Z\", \"dateReserved\": \"2019-11-04T00:00:00.000Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2020-01-14T23:11:38.000Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
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Sightings

Author Source Type Date

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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Detection rules are retrieved from Rulezet.

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