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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-70197

.NET and Visual Studio Remote Code Execution Vulnerability

Description

Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft .NET 10.0 installed on Linux

  • 10.0.0 to < 10.0.403affected

Microsoft .NET 10.0 installed on Mac OS

  • 10.0.0 to < 10.0.403affected

Microsoft .NET 10.0 installed on Windows

  • 10.0.0 to < 10.0.403affected

Microsoft .NET 10.0 runtime

  • 10.0.0 to < 10.0.13affected

Microsoft .NET 11.0 installed on Linux

  • 11.0.0-preview.1 to < 11.0.100-rc.3affected

Microsoft .NET 11.0 installed on Mac OS

  • 11.0.0-preview.1 to < 11.0.100-rc.3affected

Microsoft .NET 11.0 installed on Windows

  • 11.0.0-preview.1 to < 11.0.100-rc.3.26522.148affected

Microsoft .NET 11.0 runtime

  • 11.0.0 to < 11.0.0-rc.2affected

Microsoft .NET 8.0 installed on Linux

  • 8.0.0 to < 8.0.427affected

Microsoft .NET 8.0 installed on Mac OS

  • 8.0.0 to < 8.0.427affected

Microsoft .NET 8.0 installed on Windows

  • 8.0.0 to < 8.0.427affected

Microsoft .NET 8.0 runtime

  • 8.0.0 to < 8.0.32affected

Microsoft .NET 9.0 installed on Linux

  • 9.0.0 to < 9.0.320affected

Microsoft .NET 9.0 installed on Mac OS

  • 9.0.0 to < 9.0.320affected

Microsoft .NET 9.0 installed on Windows

  • 9.0.0 to < 9.0.320affected

Microsoft .NET 9.0 runtime

  • 9.0.0 to < 9.0.21affected

Microsoft Microsoft Visual Studio 2019 version 16.11

  • 16.11.0 to < 16.11.61affected

Microsoft Microsoft Visual Studio 2022 version 17.14

  • 17.14.0 to < 17.14.43affected

Microsoft Microsoft Visual Studio 2026 version 18.10

  • 18.10.0 to < 18.10.4affected

Microsoft Microsoft Visual Studio 2026 version 18.11

  • 18.11.0 to < 18.11.2affected

Microsoft Microsoft Visual Studio 2026 version 18.12

  • 18.12.0 to < 18.12 Insiders 3affected

References