CVEvulnerability
CVE-2020-1147
CISA Known Exploited Vulnerability
Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability — Microsoft .NET Framework, SharePoint, Visual Studio
Microsoft .NET Framework, Microsoft SharePoint, and Visual Studio contain a remote code execution vulnerability when the software fails to check the source markup of XML file input. Successful exploitation allows an attacker to execute code in the context of the process responsible for deserialization of the XML content.
- Added to KEV
- 2021-11-03
- Remediation due
- 2022-05-03
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
- Notes
- https://nvd.nist.gov/vuln/detail/CVE-2020-1147
- Status
- Analyzed
- Published
- 2020-07-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
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'.
Affected configurations
• microsoft .net core 2.1
• microsoft .net core 3.1
• microsoft .net framework 2.0
• microsoft .net framework 3.0
• microsoft .net framework 3.5
• microsoft .net framework 4.6.2
• microsoft .net framework 4.7
• microsoft .net framework 4.7.1
• microsoft .net framework 4.7.2
• microsoft .net framework 4.6
• microsoft .net framework 4.6.1
• microsoft .net framework 4.8
• microsoft .net framework 3.5.1
• microsoft .net framework 4.5.2
• microsoft sharepoint enterprise server 2013
• microsoft sharepoint enterprise server 2016
• microsoft sharepoint server 2010
• microsoft sharepoint server 2019
• microsoft visual studio 2017 (>= 15.0 <= 15.9)
• microsoft visual studio 2019 (>= 16.0 <= 16.6)
References
- http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147 Patch, Vendor Advisory
- https://www.exploitalert.com/view-details.html?id=35992 Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147 Patch, Vendor Advisory
- https://www.exploitalert.com/view-details.html?id=35992 Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1147 US Government Resource