MEDIUM 6.5 Microsoft

CVE-2026-58649

.NET Information Disclosure Vulnerability

Microsoft Security Update 2026-Sep: .NET Information Disclosure Vulnerability

Affected Products

Microsoft Visual Studio 2022 version 17.14
.NET 11.0 installed on Linux
.NET 11.0 installed on Mac OS
.NET 8.0 installed on Windows
.NET 8.0 installed on Mac OS
.NET 8.0 installed on Linux
.NET 9.0 installed on Mac OS
.NET 9.0 installed on Windows

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58649
https://nvd.nist.gov/vuln/detail/CVE-2026-58649

Published: 2026-09-08 · Source: Microsoft · Feed updated: 2026-10-27

This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-09-08 via Microsoft. Affected: Microsoft Visual Studio 2022 version 17.14, .NET 11.0 installed on Linux, .NET 11.0 installed on Mac OS and 5 more.

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