GHSA-g5vf-38cp-4px9 GHSA-g5vf-38cp-4px9
.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability
High
Known exploited
NuGet
- Severity
- 7.8 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 95.80%
- Chance of exploitation in the next 30 days. Higher than 99.87% of scored vulnerabilities.
- Known exploited
- Yes
- In CISA's catalog
- Weakness
- —
- Not classified
- Fix
- Available
- 12 packages have a fixed version
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 versions
NuGet
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
Microsoft.NETCore.App NuGet → 2.1.20
- dotnet
dotnet add package Microsoft.NETCore.App --version 2.1.20
Microsoft.NETCore.App.Runtime.linux-arm NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm --version 3.1.6
Microsoft.NETCore.App.Runtime.linux-arm64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm64 --version 3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-arm64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm64 --version 3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-x64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-x64 --version 3.1.6
Microsoft.NETCore.App.Runtime.linux-x64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.linux-x64 --version 3.1.6
Microsoft.NETCore.App.Runtime.osx-x64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.osx-x64 --version 3.1.6
Microsoft.NETCore.App.Runtime.rhel.6-x64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.rhel.6-x64 --version 3.1.6
Microsoft.NETCore.App.Runtime.win-arm NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.win-arm --version 3.1.6
Microsoft.NETCore.App.Runtime.win-arm64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.win-arm64 --version 3.1.6
Microsoft.NETCore.App.Runtime.win-x64 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.win-x64 --version 3.1.6
Microsoft.NETCore.App.Runtime.win-x86 NuGet → 3.1.6
- dotnet
dotnet add package Microsoft.NETCore.App.Runtime.win-x86 --version 3.1.6
Severity breakdown
CVSS 3.1 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
- Exploit maturity
- H
References
Advisories
Other links
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147
- exploitalert.com/view-details.html
- packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html
- packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.…
- packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.…
- github.com/dotnet/announcements/issues/159
- cisa.gov/known-exploited-vulnerabilities-catalog
Timeline
- Published
- Last updated by the source
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-87vj-4hqv-22p9 Microsoft Security Advisory CVE-2026-96233 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-2j93-m82w-73j2 Microsoft Security Advisory CVE-2026-96231 - .NET and Visual Studio Elevation of Privilege Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-w6wh-p4g7-mpj2 Microsoft Security Advisory CVE-2026-96225 - .NET and Visual Studio Elevation of Privilege Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-4mpw-cpwj-hxxj Microsoft Security Advisory CVE-2026-70197 - .NET and Visual Studio Remote Code Execution Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.win-arm64 |
| GHSA-fqpq-cx42-9jmm Microsoft Security Advisory CVE-2026-70194 - .NET and Visual Studio Security Feature Bypass Vulnerability | Medium | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-3rxq-g8rj-r2cf Microsoft Security Advisory CVE-2026-69651 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-wxxw-5cvc-53j7 Microsoft Security Advisory CVE-2026-66822 - .NET and Visual Studio Information Disclosure Vulnerability | Medium | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
| GHSA-mc4q-93x5-f6hj Microsoft Security Advisory CVE-2026-58280 - .NET and Visual Studio Denial of Service Vulnerability | High | Also affects Microsoft.NETCore.App.Runtime.linux-arm |
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