Jul 2026: .NET Spoofing Vulnerability
CVE-2026-50659 Published on July 14, 2026
.NET Spoofing Vulnerability
Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.
Weakness Type
What is an Output Sanitization Vulnerability?
The software prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
CVE-2026-50659 has been classified to as an Output Sanitization vulnerability or weakness.
Products Associated with CVE-2026-50659
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Affected Versions
Microsoft .NET 10.0:- Version 10.0.0 and below 10.0.6 is affected.
- Version 8.0.0 and below 8.0.29 is affected.
- Version 9.0.0 and below 9.0.18 is affected.
- Version 17.12.0 and below 17.12.22 is affected.
- Version 17.14.0 and below 17.14.36 is affected.
- Version 18.0 and below 18.7.4 is affected.