Oct 2025: .NET Elevation of Privilege Vulnerability
CVE-2025-55247 Published on October 14, 2025
.NET Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
Weakness Type
What is an insecure temporary file Vulnerability?
The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
CVE-2025-55247 has been classified to as an insecure temporary file vulnerability or weakness.
Products Associated with CVE-2025-55247
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Affected Versions
Microsoft .NET 8.0:- Version 8.0.0 and below 8.0.21 is affected.
- Version 9.0.0 and below 9.0.10 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2025-55247
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| nuget | Microsoft.Build.Utilities.Core | >= 17.8.0, <= 17.8.29 | 17.8.43 |
| nuget | Microsoft.Build.Utilities.Core | >= 17.10.0, <= 17.10.29 | 17.10.46 |
| nuget | Microsoft.Build.Utilities.Core | >= 17.11.0, <= 17.11.31 | 17.11.48 |
| nuget | Microsoft.Build.Utilities.Core | >= 17.12.0, <= 17.12.36 | 17.12.50 |
| nuget | Microsoft.Build.Utilities.Core | >= 17.14.0, <= 17.14.8 | 17.14.28 |
| nuget | Microsoft.Build.Utilities.Core | = 17.15.0-preview-25277-114 | 18.0.0-preview-25476-107 |
| nuget | Microsoft.Build | >= 17.8.0, <= 17.8.29 | 17.8.43 |
| nuget | Microsoft.Build | >= 17.10.0, <= 17.10.29 | 17.10.46 |
| nuget | Microsoft.Build | >= 17.11.0, <= 17.11.31 | 17.11.48 |
| nuget | Microsoft.Build | >= 17.12.0, <= 17.12.36 | 17.12.50 |
| nuget | Microsoft.Build | >= 17.14.0, <= 17.14.8 | 17.14.28 |
| nuget | Microsoft.Build | = 17.15.0-preview-25277-114 | 18.0.0-preview-25476-107 |
| nuget | Microsoft.Build.Tasks.Core | >= 17.8.0, <= 17.8.29 | 17.8.43 |
| nuget | Microsoft.Build.Tasks.Core | >= 17.10.0, <= 17.10.29 | 17.10.46 |
| nuget | Microsoft.Build.Tasks.Core | >= 17.11.0, <= 17.11.31 | 17.11.48 |
| nuget | Microsoft.Build.Tasks.Core | >= 17.12.0, <= 17.12.36 | 17.12.50 |
| nuget | Microsoft.Build.Tasks.Core | >= 17.14.0, <= 17.14.8 | 17.14.28 |
| nuget | Microsoft.Build.Tasks.Core | = 17.15.0-preview-25277-114 | 18.0.0-preview-25476-107 |
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.