CVE-2025-30399: Microsoft .net

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

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

Affected products

• Microsoft .net: from 9.0.0, before 9.0.6 (fixed in 9.0.6); from 8.0.0, before 8.0.17 (fixed in 8.0.17)
• Microsoft PowerShell: from 7.4, before 7.4.11 (fixed in 7.4.11); from 7.5, before 7.5.2 (fixed in 7.5.2)
• Microsoft Visual Studio 2022: from 17.8.0, before 17.8.22 (fixed in 17.8.22); from 17.10.0, before 17.10.16 (fixed in 17.10.16); from 17.12.0, before 17.12.9 (fixed in 17.12.9); from 17.14.0, before 17.14.5 (fixed in 17.14.5)

Published 2025-06-13. Last modified 2026-06-17.