CVE-2025-30399: .NET and Visual Studio Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Jun

Released

2025-06-10

Last Updated

2025-07-08

EPSS Score

0.25% (percentile: 48.5%)

Description

Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? This attack requires a victim to perform a specific action, such as copying files or executing a command, and for an attacker with appropriate access to have pre-planted malicious files with knowledge of where they should be placed on the victim's system. According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is required (UI:R). What is the target context of the remote code execution? This attack requires a specially crafted file to be placed either in an online directory or in a local network location. When a victim runs this file, it loads the malicious DLL.

Affected Products (12)

Developer Tools

• PowerShell 7.4
• PowerShell 7.5
• .NET 8.0 installed on Windows
• .NET 8.0 installed on Linux
• .NET 8.0 installed on Mac OS
• .NET 9.0 installed on Linux
• .NET 9.0 installed on Mac OS
• .NET 9.0 installed on Windows
• Microsoft Visual Studio 2022 version 17.12
• Microsoft Visual Studio 2022 version 17.8
• Microsoft Visual Studio 2022 version 17.10
• Microsoft Visual Studio 2022 version 17.14

Security Updates (7)

• Release Notes
• 5061935
• 5061936
• Release Notes
• Release Notes
• Release Notes
• Release Notes

Acknowledgments

jony_juice

Revision History

• 2025-06-10: Information published.
• 2025-07-08: Revised the Security Updates table to include PowerShell 7.4 and PowerShell 7.5 because these versions of PowerShell 7 are affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/77 for more information.