Description
Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | .NET 10.0 | 10.0.0 – < 10.0.4 | 10.0.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | dotnet7 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | dotnet10.0 | 10.0.106-1.hum1 | RHSA-2026:9077 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | dotnet10-runtime | 10.0.4-r0 | — |
| Alpine v3.23 | dotnet10-runtime | 10.0.4-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | Microsoft.NetCore.App.Runtime.linux-arm | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
| NuGet | Microsoft.NetCore.App.Runtime.linux-arm64 | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
| NuGet | Microsoft.NetCore.App.Runtime.linux-musl-arm | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
| NuGet | Microsoft.NetCore.App.Runtime.linux-musl-arm64 | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
| NuGet | Microsoft.NetCore.App.Runtime.linux-musl-x64 | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
| NuGet | Microsoft.NetCore.App.Runtime.linux-x64 | >= 10.0.0, < 10.0.4 | 10.0.4 | GHSA-crjq-wm6x-6qx7 |
Advisories 4
- RHSA-2026:9077 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- WID-SEC-2026-0657 Microsoft ASP.NET und .NET: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 27, 2026
- NCSC-2026-0085 Kwetsbaarheden verholpen in Microsoft Developer tools NCSC-NL (Netherlands) · Mar 10, 2026
- MSRC-CVE-2026-26131 .NET Elevation of Privilege Vulnerability Microsoft Security Response Center · Mar 10, 2026
References
- .NET Elevation of Privilege Vulnerability vendor-advisory patch