CVE-2020-1147
A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
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'.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability.
- Added
- 3 Nov 2021
- Fix due (US federal)
- 3 May 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
Timeline
ID reserved
By microsoft
- 8 months later
· 8 months later
Published
- 16 months later
· 16 months later
Added to CISA KEV
Known exploited in the wild
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 95.8% · top 0.1% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
- Remote Code Execution
- CWE-noinfo Not enough information
Affected products
Microsoft · Microsoft SharePoint Enterprise Server
- affected 2016
- affected 2013 Service Pack 1
Microsoft · Microsoft SharePoint Server
- affected 2019
- affected 2010 Service Pack 2
Microsoft · Microsoft Visual Studio 2019
- affected 16.0
Microsoft · Microsoft Visual Studio 2019 version 16.6 (includes 16.0 - 16.5)
- affected unspecified
Microsoft · Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
- affected unspecified
Microsoft · Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
- affected unspecified
- affected 2.1
- affected 3.1
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)
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2016
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows RT 8.1
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2012
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2012 R2
- affected unspecified
Microsoft · Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)
- affected 1903
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
- affected 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
- affected 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
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016
- affected 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)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems
- affected unspecified
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
Microsoft · Microsoft .NET Framework 2.0
- affected Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
- affected Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
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 x64-based Systems Service Pack 2
Microsoft · Microsoft .NET Framework 3.5
- 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)
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 x64-based Systems Service Pack 1
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)
Microsoft · Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for ARM64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for x64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 2004 (Server Core installation)
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for ARM64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for ARM64-based Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for 32-bit Systems
- affected unspecified
Microsoft · Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for ARM64-based Systems
- affected unspecified
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetMicrosoft.NETCore.AppGHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-armGHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-arm64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-arm64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-musl-x64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.linux-x64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.osx-x64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.rhel.6-x64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-armGHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-arm64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-x64GHSA-g5vf-38cp-4px9 (opens in a new tab)
- NuGetMicrosoft.NETCore.App.Runtime.win-x86GHSA-g5vf-38cp-4px9 (opens in a new tab)
References (6)
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147 (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.exploitalert.com/view-details.html?id=35992 (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1147 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-g5vf-38cp-4px9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-1147)Record last updated .