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An information disclosure vulnerability exists in .NET Framework and .NET Core which allows bypassing Cross-origin Resource Sharing (CORS) configurations, aka ".NET Framework Information Disclosure Vulnerability." This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.7/4.7.1/4.7.2, .NET Core 2.1, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 2.2, Microsoft .NET Framework 4.7.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2019-01 Cumulative Update for Windows 10 Version 1703 for x86-based Systems (KB4480973)2019-01 Cumulative Update for Windows 10 Version 1507 for x86-based Systems (KB4480962)2019-01 Cumulative Update for Windows 10 Version 1507 for x64-based Systems (KB4480962)2019-01 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4480966)2019-01 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10 Version 1809 for x64 (KB4480056)2019-01 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4480961)2019-01 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4480961)2019-01 Cumulative Update for Windows 10 Version 1709 for x86-based Systems (KB4480978)2019-01 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows Server 2019 for x64 (KB4480056)2019-01 Cumulative Update for Windows 10 Version 1803 for x86-based Systems (KB4480966)2019-01 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10 Version 1809 (KB4480056)2019-01 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB4480961)2019-01 Cumulative Update for Windows 10 Version 1709 for x64-based Systems (KB4480978)2019-01 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4480973) | Jan 8, 2019 | Jan 8, 2019 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Jan 8, 2019 |
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