What is the CVSS score of CVE-2025-26646?

CVE-2025-26646 has a contested CVSS base score of 8.0 from a third party (e.g. CISA-ADP), while the vendor rates it High. vuln.today uses the vendor rating as authoritative.

Which versions of Build Tools are affected by CVE-2025-26646?

CVE-2025-26646 presents notable security risk rated CVSS 8.0. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems.. A patch is available.

How to fix or mitigate CVE-2025-26646?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

Build Tools CVE-2025-26646

HIGH

External Control of File Name or Path (CWE-73)

2025-05-13 secure@microsoft.com

Information Disclosure Build Tools Visual Studio 2022 Net Red Hat Suse

High

Disputed · 8.0 NVD

Severity by source

Sources disagree (Low–High)

NVD PRIMARY

8.0 HIGH

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

SUSE

3.1 LOW

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Red Hat

8.0 HIGH

qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:41 vuln.today

CVE Published

May 13, 2025 - 22:15 nvd

HIGH 8.0

DescriptionCVE.org

External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network.

AnalysisAI

External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-73. External control of file name or path in .NET, Visual Studio, and Build Tools for Visual Studio allows an authorized attacker to perform spoofing over a network. Affected products include: Microsoft Build Tools, Microsoft Visual Studio 2022, Microsoft .Net.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.