MSRC-CVE-2026-50528 — .NET Security Feature Bypass Vulnerability

Summary

Impact: Security Feature Bypass. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What kind of security feature could be bypassed by successfully exploiting this vulnerability?
The authentication feature could be bypassed as this vulnerability allows impersonation.

Security updates
17.12.22 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
10.0.10 — https://support.microsoft.com/kb/5104034
8.0.29 — https://support.microsoft.com/kb/5104032
9.0.18 — https://support.microsoft.com/kb/5104033
18.7.4 — https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes

Vulnerabilities 1

High 8.2

CVE-2026-50528

.NET Security Feature Bypass Vulnerability

Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a network.

Microsoft Microsoft Visual Studio 2022 version 17.14 .NET 9.0 runtime .NET 10.0 runtime Ubuntu Alpine Wolfi NuGet

Jul 14, 2026

Revision history

2026-07-14 #1
Information published.

References

CVE-2026-50528 .NET Security Feature Bypass Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50528
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss