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CVE-2026-102870

ASP.NET Core Remote Code Execution Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.403, 11.0.100-rc.3, 16.11.61, 17.14.43, 18.10.4, and 4 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Improper control of generation of code ('code injection') in ASP.NET Core 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 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

  • 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

  • Microsoft Microsoft.AspNetCore.Components.WebAssembly.DevServer

    From 11.0.0-preview.1 · fixed in 10.0.14

  • Microsoft Microsoft.AspNetCore.Components.WebAssembly.Server

    From 10.0.0 · fixed in 10.0.13

References 1

msrc.microsoft.com