CVE-2026-32178

Modified Modified - Updated After Analysis

NET Spoofing Vulnerability via Improper Input Neutralization

Publication date: 2026-04-14

Last updated on: 2026-06-30

Assigner: Microsoft Corporation

Description

Improper neutralization of special elements in .NET allows an unauthorized attacker to perform spoofing over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-14

Last Modified

2026-06-30

Generated

2026-07-06

AI Q&A

2026-04-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-32178

EUVD

EUVD-2026-22562

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	.net	From 10.0.0 (inc) to 10.0.6 (exc)
microsoft	.net	From 8.0.0 (inc) to 8.0.26 (exc)
microsoft	.net	From 9.0.0 (inc) to 9.0.15 (exc)
microsoft	visual_studio_2022	From 17.12.0 (inc) to 17.12.19 (exc)
microsoft	visual_studio_2022	From 17.14.0 (inc) to 17.14.30 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-138	The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper neutralization of special elements in the .NET framework. It allows an unauthorized attacker to perform spoofing attacks over a network.

Impact Analysis

The vulnerability can lead to spoofing attacks, where an attacker can impersonate a trusted entity over a network. This can result in unauthorized access or deception, potentially compromising security.

Compliance Impact

The vulnerability allows an unauthorized attacker to perform spoofing over a network by exploiting improper neutralization of special elements in .NET.

Such spoofing attacks can potentially lead to unauthorized access or misrepresentation of identity, which may impact the confidentiality and integrity of data.

This could affect compliance with standards and regulations like GDPR and HIPAA that require protection of sensitive data and prevention of unauthorized access.

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