ASP.NET Core Remote Code Execution Vulnerability
CVE-2026-96230

8.8HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Visual Studio 2022 Version 17.14
Microsoft Visual Studio 2026 Version 18.10
Microsoft.aspnetcore.components.webassembly.server
Vendor
CVE Published:
13 October 2026

What is CVE-2026-96230?

Improper neutralization of input during web page generation ('cross-site scripting') in ASP.NET Core allows an unauthorized attacker to execute code over a network.

Affected Version(s)

Microsoft Visual Studio 2022 version 17.14 17.14.0 < 17.14.42

Microsoft Visual Studio 2026 version 18.10 18.10.0 < 18.10.4

Microsoft.AspNetCore.Components.WebAssembly.Server .NET 10.0 installed on Linux 10.0.0 < 10.0.13

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.