2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 (KB5126145)

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 for x64 KB5126145...

2026-09 .NET 9.0.20 Security Update for ARM64 Client (KB5126105)

2026-09 .NET 9.0.20 Security Update for ARM64 Client KB5126105...

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 for x64 (KB5126146)

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 for x64 KB5126146...

2026-09 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 (KB5126144)

2026-09 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows Server 2019 for x64 KB5126144...

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 (KB5126145)

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 KB5126145...

2026-09 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 for x64 (KB5126047)

2026-09 Cumulative Update for .NET Framework 4.8 for Windows Server 2016 for x64 KB5126047...

2026-09 .NET 8.0.31 Security Update for x64 Client (KB5126104)

2026-09 .NET 8.0.31 Security Update for x64 Client KB5126104...

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 (KB5126149)

2026-09 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Microsoft server operating system version 21H2 for x64 KB5126149...

.NET and Visual Studio Elevation of Privilege Vulnerability

Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network...

.NET and Visual Studio Remote Code Execution Vulnerability

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network...

.NET and Visual Studio Remote Code Execution Vulnerability

Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network...

.NET Elevation of Privilege Vulnerability

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally...

.NET Elevation of Privilege Vulnerability

External control of file name or path in .NET allows an unauthorized attacker to elevate privileges over a network...

.NET Information Disclosure Vulnerability

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network...

September 8, 2026-KB5126424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2

September 8, 2026-KB5126424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows 11, version 23H2 includes security and cumulative...

September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022

September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows Server 2022 includes security and cumulative reliability...

September 8, 2026-KB5126421 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2

September 8, 2026-KB5126421 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows 10 Version 21H2 and Windows 10...

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 (KB5126045)

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 KB5126045 Applies To .NET Note Applies to: Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Important The...

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 4.8.1 The September 8, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvement...

September 8, 2026-KB5126052 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2, Windows 11, version 25H2 and Microsoft server operating system 24H2

September 8, 2026-KB5126052 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2, Windows 11, version 25H2 and Microsoft server operating system 24H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update...