CVE-2025-55247
High
Description
Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.
SeverityHigh
CVSS7.3
Exploit probability—
Product
Microsoft .net
PublishedOct 14, 2025
First seenOct 14, 2025
Weakness typeCWE-59Improper link resolution
How to fix
Update
- microsoft .net8.0.21, 9.0.10 or later
- Microsoft.Build.Tasks.Core18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 or later
- Microsoft.Build18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 or later
- Microsoft.Build.Utilities.Core18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft .net | 8.0.0 ≤ v < 8.0.21, 9.0.0 ≤ v < 9.0.10 | 8.0.21, 9.0.10 |
| Microsoft.Build.Tasks.CoreNuGet | 17.15.0-preview-25277-114 ≤ v < 18.0.0-preview-25476-107, 17.14.0 ≤ v < 17.14.28, 17.12.0 ≤ v < 17.12.50, 17.11.0 ≤ v < 17.11.48, 17.10.0 ≤ v < 17.10.46, 17.8.0 ≤ v < 17.8.43 | 18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 |
| Microsoft.BuildNuGet | 17.15.0-preview-25277-114 ≤ v < 18.0.0-preview-25476-107, 17.14.0 ≤ v < 17.14.28, 17.12.0 ≤ v < 17.12.50, 17.11.0 ≤ v < 17.11.48, 17.10.0 ≤ v < 17.10.46, 17.8.0 ≤ v < 17.8.43 | 18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 |
| Microsoft.Build.Utilities.CoreNuGet | 17.15.0-preview-25277-114 ≤ v < 18.0.0-preview-25476-107, 17.14.0 ≤ v < 17.14.28, 17.12.0 ≤ v < 17.12.50, 17.11.0 ≤ v < 17.11.48, 17.10.0 ≤ v < 17.10.46, 17.8.0 ≤ v < 17.8.43 | 18.0.0-preview-25476-107, 17.14.28, 17.12.50, 17.11.48, 17.10.46, 17.8.43 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.