# CVE-2020-1147: A Microsoft .NET Framework, SharePoint, Visual Studio bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Microsoft .NET Framework, SharePoint, Visual Studio (CVE-2020-1147) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2020-1147. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
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.

## Sources
- https://nvd.nist.gov/vuln/detail/CVE-2020-1147
- https://nvd.nist.gov/vuln/detail/CVE-2020-1147

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.