high7.5
CVE-2026-32175
A tampering vulnerability exists when .NET Core improperly handles specially crafted files.
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Microsoft.NetCore.App.Runtime.win-arm | >= 8.0.0, <= 8.0.26 | 8.0.27 |
| nuget | Microsoft.NetCore.App.Runtime.win-arm64 | >= 8.0.0, <= 8.0.26 | 8.0.27 |
| nuget | Microsoft.NetCore.App.Runtime.win-x64 | >= 8.0.0, <= 8.0.26 | 8.0.27 |
| nuget | Microsoft.NetCore.App.Runtime.win-x86 | >= 8.0.0, <= 8.0.26 | 8.0.27 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Visual Studio 2022 | from 17.12.0 before 17.12.20 from 17.14.0 before 17.14.32 |
| Microsoft | Visual Studio 2026 | from 18.5.0 before 18.5.3 |
| Microsoft | .Net | from 8.0.0 before 8.0.27 from 9.0.0 before 9.0.16 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-rg75-q538-x34v
- https://github.com/dotnet/runtime/security/advisories/GHSA-rg75-q538-x34v
- https://nvd.nist.gov/vuln/detail/CVE-2026-32175
- https://github.com/dotnet/announcements/issues/396
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32175