CVE-2020-1147
7.8
HIGH
CVSS 3.1
EPSS 94.0% · 100th pctCISA KEV · Exploited in the wild
2020-07-14•Updated 2025-10-21•KEV 2021-11-03
CISA Known Exploited Vulnerabilities
Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Added to KEV
2021-11-03
Remediation due
2022-05-03
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2020-1147
Description
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'.
Severity
CVSS 3.1 · CISA7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server | 2016 2013 Service Pack 1 |
| Microsoft | Microsoft SharePoint Server | 2019 2010 Service Pack 2 |
| Microsoft | Microsoft Visual Studio 2019 | 16.0 |
| Microsoft | Microsoft Visual Studio 2019 version 16.6 (includes 16.0 - 16.5) | unspecified |
| Microsoft | Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | unspecified |
| Microsoft | Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | unspecified |
| Microsoft | .NET Core | 2.1 3.1 |
| Microsoft | Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 | Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows RT 8.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation) | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2016 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows RT 8.1 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2012 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2012 R2 | unspecified |
| Microsoft | Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation) | 1903 |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) | unspecified |
| 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 | unspecified |
| 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 | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 | unspecified |
| 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) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 4.6 | Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 |
| Microsoft | Microsoft .NET Framework 2.0 | Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 |
| Microsoft | Microsoft .NET Framework 3.0 | Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 |
| Microsoft | Microsoft .NET Framework 3.5 | Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) |
| Microsoft | Microsoft .NET Framework 3.5.1 | Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 |
| Microsoft | Microsoft .NET Framework 4.5.2 | Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows RT 8.1 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2012 Windows Server 2012 (Server Core installation) Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for ARM64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for x64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 2004 (Server Core installation) | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for ARM64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for ARM64-based Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for 32-bit Systems | unspecified |
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for ARM64-based Systems | unspecified |
References
5 LinksOther references
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147
- http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html
- http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html
- https://www.exploitalert.com/view-details.html?id=35992
- http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html
Record Details
Published
2020-07-14
Last updated
2025-10-21
Assigner (CNA)
microsoft
Credited to
-
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