CVE-2024-43484: .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Category

Denial of Service

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2024-Oct

Released

2024-10-08

Last Updated

2024-10-23

EPSS Score

1.21% (percentile: 79.0%)

Affected Products (85)

Developer Tools

• PowerShell 7.2
• PowerShell 7.4
• Microsoft Visual Studio 2022 version 17.6
• Microsoft Visual Studio 2022 version 17.8
• Microsoft Visual Studio 2022 version 17.10
• Microsoft Visual Studio 2022 version 17.11
• .NET 6.0 installed on Linux
• .NET 6.0 installed on Windows
• .NET 8.0 installed on Windows
• .NET 8.0 installed on Linux
• .NET 6.0 installed on Mac OS
• .NET 8.0 installed on Mac OS
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 11 version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1607 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for 32-bit Systems
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for 32-bit Systems
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation)
• Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 (Server Core installation)
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 21H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for 32-bit Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for ARM64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems
• Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022, 23H2 Edition (Server Core installation)
• Microsoft .NET Framework 4.6.2 on Windows Server 2008 for 32-bit Systems Service Pack 2
• ... and 35 more

Security Updates (37)

• Release Notes
• Release Notes
• Release Notes
• Release Notes
• Release Notes
• 5045998
• 5045993
• 5044089
• 5044293
• 5044091
• 5044092
• 5044095
• 5044085
• 5044096
• 5044097
• 5044099
• 5044092
• 5044090
• 5044033
• 5044028
• 5044286
• 5044098
• 5044086
• 5044098
• 5044086
• 5044096
• 5044097
• 5044095
• 5044085
• 5044096
• ... and 7 more

Acknowledgments

Levi Broderick of Microsoft Corporation

Revision History

• 2024-10-08: Information published.
• 2024-10-11: Corrected Build Numbers in the Security Updates table. This is an informational change only.
• 2024-10-23: Revised the Security Updates table to include PowerShell 7.2 and PowerShell 7.4 because these versions of PowerShell 7 are affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/70 for more information.