CVE-2020-1147

A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.

Score

CVSS 3.1 7.8 High

Status

Analyzed - secure@microsoft.com

Published

2020-07-14

Last modified

2025-10-21

Known exploited (CISA KEV)

since 2021-11-03, action due 2022-05-03: Apply updates per vendor instructions.

Affected products

• .net Core (Microsoft)
• .net Framework (Microsoft)
• Microsoft .net Framework 2.0 (Microsoft)
• Microsoft .net Framework 3.0 (Microsoft)
• Microsoft .net Framework 3.5 (Microsoft)
• Microsoft .net Framework 3.5.1 (Microsoft)
• Microsoft .net Framework 3.5 And 4.6.24.74.7.14.7.2 On Windows 10 Version 1607 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.6.24.74.7.14.7.2 On Windows 10 Version 1607 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.6.24.74.7.14.7.2 On Windows Server 2016 (Microsoft)
• Microsoft .net Framework 3.5 And 4.6.24.74.7.14.7.2 On Windows Server 2016 Server Core Installation (Microsoft)
• Microsoft .net Framework 3.5 And 4.64.6.14.6.2 On Windows 10 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.64.6.14.6.2 On Windows 10 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.14.7.2 On Windows 10 Version 1709 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.14.7.2 On Windows 10 Version 1709 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.14.7.2 On Windows 10 Version 1709 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1803 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1803 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1803 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1809 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1809 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows 10 Version 1809 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows Server (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows Server 2019 (Microsoft)
• Microsoft .net Framework 3.5 And 4.7.2 On Windows Server 2019 Server Core Installation (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1809 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1809 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1903 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1903 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1903 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1909 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1909 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 1909 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 2004 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 2004 For Arm64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows 10 Version 2004 For X64-based Systems (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows Server (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows Server 2019 (Microsoft)
• Microsoft .net Framework 3.5 And 4.8 On Windows Server 2019 Server Core Installation (Microsoft)
• Microsoft .net Framework 4.5.2 (Microsoft)
• Microsoft .net Framework 4.6 (Microsoft)
• Microsoft .net Framework 4.64.6.14.6.24.74.7.14.7.2 (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1607 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1607 For X64-based Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1709 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1709 For X64-based Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1803 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 10 Version 1803 For X64-based Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 7 For 32-bit Systems Service Pack 1 (Microsoft)
• Microsoft .net Framework 4.8 On Windows 7 For X64-based Systems Service Pack 1 (Microsoft)
• Microsoft .net Framework 4.8 On Windows 8.1 For 32-bit Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows 8.1 For X64-based Systems (Microsoft)
• Microsoft .net Framework 4.8 On Windows Rt 8.1 (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2008 R2 For X64-based Systems Service Pack 1 (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2008 R2 For X64-based Systems Service Pack 1 Server Core Installation (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2012 (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2012 R2 (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2012 R2 Server Core Installation (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2012 Server Core Installation (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2016 (Microsoft)
• Microsoft .net Framework 4.8 On Windows Server 2016 Server Core Installation (Microsoft)
• Microsoft Sharepoint Enterprise Server (Microsoft)
• Microsoft Sharepoint Server (Microsoft)
• Microsoft Visual Studio 2017 Version 15.9 Includes 15.0 - 15.8 (Microsoft)
• Microsoft Visual Studio 2019 (Microsoft)
• Microsoft Visual Studio 2019 Version 16.4 Includes 16.0 - 16.3 (Microsoft)
• Microsoft Visual Studio 2019 Version 16.6 Includes 16.0 - 16.5 (Microsoft)
• Sharepoint Enterprise Server (Microsoft)
• Sharepoint Server (Microsoft)
• Version 1803 Server Core Installation (Microsoft)
• Version 1903 Server Core Installation (Microsoft)
• Version 1909 Server Core Installation (Microsoft)
• Version 2004 Server Core Installation (Microsoft)
• Visual Studio 2017 (Microsoft)
• Visual Studio 2019 (Microsoft)

References

• http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html
• http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147
• https://www.exploitalert.com/view-details.html?id=35992
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1147