CVE-2026-96230

ASP.NET Core Remote Code Execution Vulnerability

State: Published
Severity: 8.8 High
Published: Oct 13, 2026
Updated: Oct 31, 2026
Reserved: Sep 22, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
Microsoft Visual Studio 2022 version 17.14Microsoft	17.14.0 to before 17.14.42Affected
Microsoft Visual Studio 2026 version 18.10Microsoft	18.10.0 to before 18.10.4Affected
Microsoft.AspNetCore.Components.WebAssembly.ServerMicrosoft	10.0.0 to before 10.0.13Affected

References

ASP.NET Core Remote Code Execution Vulnerabilityvendor-advisorypatch

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