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CVE-2026-70197

.NET and Visual Studio Remote Code Execution Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.403, 10.0.13, 11.0.100-rc.3, 11.0.100-rc.3.26522.148, 11.0.0-rc.2, and 9 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • Microsoft .NET 10.0 installed on Linux

    From 10.0.0 · fixed in 10.0.403

  • Microsoft .NET 10.0 installed on Mac OS

    From 10.0.0 · fixed in 10.0.403

  • Microsoft .NET 10.0 installed on Windows

    From 10.0.0 · fixed in 10.0.403

  • Microsoft .NET 10.0 runtime

    From 10.0.0 · fixed in 10.0.13

  • Microsoft .NET 11.0 installed on Linux

    From 11.0.0-preview.1 · fixed in 11.0.100-rc.3

  • Microsoft .NET 11.0 installed on Mac OS

    From 11.0.0-preview.1 · fixed in 11.0.100-rc.3

  • Microsoft .NET 11.0 installed on Windows

    From 11.0.0-preview.1 · fixed in 11.0.100-rc.3.26522.148

  • Microsoft .NET 11.0 runtime

    From 11.0.0 · fixed in 11.0.0-rc.2

  • Microsoft .NET 8.0 installed on Linux

    From 8.0.0 · fixed in 8.0.427

  • Microsoft .NET 8.0 installed on Mac OS

    From 8.0.0 · fixed in 8.0.427

  • Microsoft .NET 8.0 installed on Windows

    From 8.0.0 · fixed in 8.0.427

  • Microsoft .NET 8.0 runtime

    From 8.0.0 · fixed in 8.0.32

  • Microsoft .NET 9.0 installed on Linux

    From 9.0.0 · fixed in 9.0.320

  • Microsoft .NET 9.0 installed on Mac OS

    From 9.0.0 · fixed in 9.0.320

  • Microsoft .NET 9.0 installed on Windows

    From 9.0.0 · fixed in 9.0.320

  • Microsoft .NET 9.0 runtime

    From 9.0.0 · fixed in 9.0.21

  • Microsoft Microsoft Visual Studio 2019 version 16.11

    From 16.11.0 · fixed in 16.11.61

  • Microsoft Microsoft Visual Studio 2022 version 17.14

    From 17.14.0 · fixed in 17.14.43

  • Microsoft Microsoft Visual Studio 2026 version 18.10

    From 18.10.0 · fixed in 18.10.4

  • Microsoft Microsoft Visual Studio 2026 version 18.11

    From 18.11.0 · fixed in 18.11.2

  • Microsoft Microsoft Visual Studio 2026 version 18.12

    From 18.12.0 · fixed in 18.12 Insiders 3

References 1

msrc.microsoft.com