Mar 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-26131 Published on March 10, 2026
.NET Elevation of Privilege Vulnerability
Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.
Weakness Type
Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.
Products Associated with CVE-2026-26131
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Affected Versions
Microsoft .NET 10.0:- Version 10.0.0 and below 10.0.4 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2026-26131
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| nuget | Microsoft.NetCore.App.Runtime.linux-arm | >= 10.0.0, <= 10.0.3 | 10.0.4 |
| nuget | Microsoft.NetCore.App.Runtime.linux-arm64 | >= 10.0.0, <= 10.0.3 | 10.0.4 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-arm | >= 10.0.0, <= 10.0.3 | 10.0.4 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-arm64 | >= 10.0.0, <= 10.0.3 | 10.0.4 |
| nuget | Microsoft.NetCore.App.Runtime.linux-musl-x64 | >= 10.0.0, <= 10.0.3 | 10.0.4 |
| nuget | Microsoft.NetCore.App.Runtime.linux-x64 | >= 10.0.0, <= 10.0.3 | 10.0.4 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.