# CVE-2021-41355: .NET Core and Visual Studio Information Disclosure Vulnerability

CVE-2021-41355 is fixed in 12 products on 2 platforms, first by RHSA-2021:3819, released October 12, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-41355
- Priority: Routine
- CVSS: 5.7 (Important)
- EPSS: 0.2034
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Oct 12, 2021
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-41355

## Description

.NET Core and Visual Studio Information Disclosure Vulnerability

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | PowerShell | 7.1.5.0 | [PowerShell 7.1.5.0](https://patchblox.com/security/data/fix/windows-app/microsoft.powershell-7.1.5.0.md) | Oct 14, 2021 |
| Linux | aspnetcore-runtime-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | aspnetcore-runtime-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | aspnetcore-targeting-pack-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | aspnetcore-targeting-pack-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet RHEL 8 | 0:5.0.208-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet ol 8 | 0:5.0.208-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-apphost-pack-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-apphost-pack-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-host RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-host ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-hostfxr-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-hostfxr-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-runtime-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-runtime-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-sdk-5.0 RHEL 8 | 0:5.0.208-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-sdk-5.0 ol 8 | 0:5.0.208-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-targeting-pack-5.0 RHEL 8 | 0:5.0.11-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-targeting-pack-5.0 ol 8 | 0:5.0.11-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | dotnet-templates-5.0 RHEL 8 | 0:5.0.208-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | dotnet-templates-5.0 ol 8 | 0:5.0.208-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |
| Linux | netstandard-targeting-pack-2.1 RHEL 8 | 0:5.0.208-1.el8_4 | [RHSA-2021:3819](https://patchblox.com/security/data/fix/linux/rhsa-2021-3819.md) | Oct 12, 2021 |
| Linux | netstandard-targeting-pack-2.1 ol 8 | 0:5.0.208-1.0.1.el8_4 | [ELSA-2021-3819](https://patchblox.com/security/data/fix/linux/elsa-2021-3819.md) | Nov 2, 2021 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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