CVE-2026-50659

MediumCVSS 6.5/10Last modified Oct 28, 2026

Description

Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

Affected software

VendorProductVersions
Microsoft.NET 10.0 runtime>= 10.0.0, < 10.0.10
Microsoft.NET 8.0 runtime>= 8.0.0, < 8.0.29
Microsoft.NET 9.0 runtime>= 9.0.0, < 9.0.18
MicrosoftMicrosoft .NET Framework 3.5>= 3.5.0, < 2.0.50727.8983 & 3.0.30729.8978
MicrosoftMicrosoft .NET Framework 3.5 AND 4.7.2>= 4.7.0, < 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8>= 4.8.0, < 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0
MicrosoftMicrosoft .NET Framework 3.5 AND 4.8.1>= 4.8.1, < 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0
MicrosoftMicrosoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2>= 4.7.0, < 4.7.4143.0
MicrosoftMicrosoft .NET Framework 4.8>= 4.8.0, < 4.8.4803.0
MicrosoftMicrosoft .NET Framework 4.8.1>= 4.8.0.0, < 4.8.9340.0
MicrosoftMicrosoft Visual Studio 2022 version 17.12>= 17.12.0, < 17.12.22
MicrosoftMicrosoft Visual Studio 2022 version 17.14>= 17.14.0, < 17.14.36
MicrosoftMicrosoft Visual Studio 2026 version 18.7>= 18.0, < 18.7.4

References

Timeline

Published
Jul 14, 2026
Last modified
Oct 28, 2026
NVD status
Analyzed

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CVE-2026-50659: Medium severity, CVSS 6.5 | Vulnix