CVE-2025-30399 HIGH

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

Vendor Microsoft
Product .NET 8.0
Weakness CWE-426
Published June 13, 2025
Last update February 20, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 13, 2025 CVE published
February 20, 2026 Record updated