Vulnerability · Published May 12, 2026 · Assigned by microsoft
CVE-2026-32175.NET Core Tampering Vulnerability
Medium 4.3
In plain English
A medium-severity security flaw in Microsoft Visual Studio 2022 version 17.12 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A tampering vulnerability exists when .NET Core improperly handles specially crafted files. An attacker who successfully exploited this vulnerability could write arbitrary files and directories to certain locations on a vulnerable system. However, an attacker would have limited control over the destination of the files and directories. To exploit the vulnerability, an attacker must send a specially crafted file to a vulnerable system. The security update fixes the vulnerability by ensuring .NET Core properly handles files.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.23 | dotnet10-runtime | 10.0.8-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.24 | dotnet10-runtime | 10.0.8-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.21 | dotnet8-runtime | 8.0.27-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.22 | dotnet8-runtime | 8.0.27-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.23 | dotnet8-runtime | 8.0.27-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.24 | dotnet8-runtime | 8.0.27-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.21 | dotnet9-runtime | 9.0.16-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.22 | dotnet9-runtime | 9.0.16-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.23 | dotnet9-runtime | 9.0.16-r0 | ALPINE-CVE-2026-32175 |
| Alpine:v3.24 | dotnet9-runtime | 9.0.16-r0 | ALPINE-CVE-2026-32175 |
| NuGet | microsoft.netcore.app.runtime.win-arm | 8.0.27 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-arm | 9.0.16 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-arm | 10.0.8 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 8.0.27 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 9.0.16 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-arm64 | 10.0.8 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 8.0.27 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 9.0.16 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x64 | 10.0.8 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 8.0.27 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 9.0.16 | GHSA-rg75-q538-x34v |
| NuGet | microsoft.netcore.app.runtime.win-x86 | 10.0.8 | GHSA-rg75-q538-x34v |
| Ubuntu:22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-32175 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0 – before 10.0.8 |
| Microsoft | .NET 8.0 | 8.0.0 – before 8.0.27 |
| Microsoft | .NET 9.0 | 9.0.0 – before 9.0.16 |
| Microsoft | Microsoft Visual Studio 2022 version 17.12 | 17.12.0 – before 17.12.20 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 – before 17.14.32 |
| Microsoft | Microsoft Visual Studio 2026 version 18.5 | 18.5.0 – before 18.5.3 |
Weakness: CWE-36 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
References
- .NET Core Tampering Vulnerability vendor-advisory, patch