CVE-2026-96237

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.NET Remote Code Execution via Untrusted Control Sphere

Publication date: 2026-10-13

Last updated on: 2026-10-14

Assigner: Microsoft Corporation

Description

Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-14

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-96237

EUVD

EUVD-2026-100209

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	.NET	10.0 10.0.0
Microsoft	.NET	8.0 8.0.0
Microsoft	.NET	9.0 9.0.0
Microsoft	Microsoft	Visual Studio 2022 version 17.14 17.14.0
Microsoft	Microsoft	Visual Studio 2026 version 18.10 18.10.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-829	The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability involves the inclusion of functionality from an untrusted source in .NET. An unauthorized attacker can exploit this to execute arbitrary code over a network.

Impact Analysis

An attacker could remotely execute malicious code on your system, potentially leading to data theft, system compromise, or further network attacks if you use affected .NET versions or Visual Studio.

Compliance Impact

This vulnerability allows unauthorized remote code execution, which could lead to unauthorized access to sensitive data. This may violate compliance requirements under GDPR (data protection) and HIPAA (health information security) by enabling data breaches or unauthorized processing.

Mitigation Strategies

Apply the latest security updates from Microsoft for .NET 8.0, 9.0, 10.0, Visual Studio 2022 17.14, and Visual Studio 2026 18.10 as soon as they become available.

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