HIGH 8.8 Microsoft
CVE-2026-69522
.NET and Visual Studio Remote Code Execution Vulnerability
Microsoft Security Update 2026-Sep: .NET and Visual Studio Remote Code Execution Vulnerability
Affected Products
- .NET 10.0 installed on Windows
- .NET 8.0 installed on Windows
- .NET 9.0 installed on Windows
- Microsoft Visual Studio 2022 version 17.14
- Microsoft .NET Framework 4.8 on Windows Server 2012
- Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
- Microsoft .NET Framework 4.8 on Windows Server 2012 R2
- Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69522
- https://nvd.nist.gov/vuln/detail/CVE-2026-69522
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-09-08 via Microsoft. Affected: .NET 10.0 installed on Windows, .NET 8.0 installed on Windows, .NET 9.0 installed on Windows and 5 more.
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