Jan 2025: .NET Elevation of Privilege Vulnerability
CVE-2025-21173 Published on January 14, 2025
.NET Elevation of Privilege Vulnerability
.NET Elevation of Privilege Vulnerability
Weakness Type
Creation of Temporary File in Directory with Insecure Permissions
The software creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file. On some operating systems, the fact that the temporary file exists may be apparent to any user with sufficient privileges to access that directory. Since the file is visible, the application that is using the temporary file could be known. If one has access to list the processes on the system, the attacker has gained information about what the user is doing at that time. By correlating this with the applications the user is running, an attacker could potentially discover what a user's actions are. From this, higher levels of security could be breached.
Products Associated with CVE-2025-21173
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Affected Versions
Microsoft .NET 8.0:- Version 8.0.0 and below 8.0.12 is affected.
- Version 9.0.0 and below 9.0.1 is affected.
- Version 17.10.0 and below 17.10.10 is affected.
- Version 17.12.0 and below 17.12.4 is affected.
- Version 17.6.0 and below 17.6.22 is affected.
- Version 17.8.0 and below 17.8.17 is affected.
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.