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

Executive Summary

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

Overview

7.5

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Remote Code Execution

Weakness CWE-426: Untrusted Search Path

Released Jun 10 2025

Last Updated Jun 10 2025

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00922 — 0.56653 percentile

NVD CVSS 7.5 HIGH — matches MSRC

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

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

PRIVILEGES REQUIRED

None

USER INTERACTION

Required

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.5

EPSS Score

0.00922

probability of exploitation in the next 30 days

0.56653 percentile - updated 2026-07-25

View on FIRST.org

Affected Products

12 affected products

Product	KB Article	Severity	Impact	Restart Required
.NET 8.0 installed on Linux	`5061935 (Security Update)`	Important	Remote Code Execution	Maybe
.NET 8.0 installed on Mac OS	`5061935 (Security Update)`	Important	Remote Code Execution	Maybe
.NET 8.0 installed on Windows	`5061935 (Security Update)`	Important	Remote Code Execution	Maybe
.NET 9.0 installed on Linux	`5061936 (Security Update)`	Important	Remote Code Execution	Maybe
.NET 9.0 installed on Mac OS	`5061936 (Security Update)`	Important	Remote Code Execution	Maybe
.NET 9.0 installed on Windows	`5061936 (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Visual Studio 2022 version 17.10	`Release Notes (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Visual Studio 2022 version 17.12	`Release Notes (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Visual Studio 2022 version 17.14	`Release Notes (Security Update)`	Important	Remote Code Execution	Maybe
Microsoft Visual Studio 2022 version 17.8	`Release Notes (Security Update)`	Important	Remote Code Execution	Maybe
PowerShell 7.4	`Release Notes`	Important	Remote Code Execution	Maybe
PowerShell 7.5	`Release Notes`	Important	Remote Code Execution	Maybe

Patches

4 patches

Article	Type	Restart
`5061935`	Security Update	Maybe
`5061936`	Security Update	Maybe
`Release Notes`	Security Update	Maybe
`Release Notes`		Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

jony_juice

References

MSRC Advisory MITRE NVD