Improper access control in Microsoft products - CVE-2026-50528
Published: July 17, 2026
Vulnerability identifier: #VU138081
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-50528
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
.NET for macOS
.NET for Linux
Visual Studio
.NET
.NET for macOS
.NET for Linux
Visual Studio
.NET
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass the authentication feature.
The vulnerability exists due to improper access control in .NET authentication handling when processing network requests. A remote attacker can send crafted requests to bypass the authentication feature.
The issue can result in impersonation.
How to mitigate CVE-2026-50528
Install security update from vendor's website.