Apr 2026: .NET Spoofing Vulnerability
CVE-2026-32178 Published on April 14, 2026

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

Vendor Advisory NVD

Weakness Type

Improper Neutralization of Special Elements

The software 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. Most languages and protocols have their own special elements such as characters and reserved words. These special elements can carry control implications. If software does not prevent external control or influence over the inclusion of such special elements, the control flow of the program may be altered from what was intended. For example, both Unix and Windows interpret the symbol < ("less than") as meaning "read input from a file".


Products Associated with CVE-2026-32178

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Affected Versions

Microsoft .NET 10.0: Microsoft .NET 8.0: Microsoft .NET 8.0: Microsoft .NET 9.0: Microsoft Visual Studio 2022 version 17.12: Microsoft Visual Studio 2022 version 17.14: