CVE-2025-26646: .NET, Visual Studio, and Build Tools for Visual Studio Spoofing Vulnerability

8.0 CVSS

Description

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.

Classification

CVE ID: CVE-2025-26646

CVSS Base Severity: HIGH

CVSS Base Score: 8.0

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

Problem Types

CWE-73: External Control of File Name or Path

Affected Products

Vendor: Microsoft

Product: .NET 8.0, .NET 9.0, Microsoft Visual Studio 2022 version 17.12, Microsoft Visual Studio 2022 version 17.13, Microsoft Visual Studio 2022 version 17.8, Microsoft Visual Studio 2022 version 17.10, Build Tools for Visual Studio 2022

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 6.45% (scored less or equal to compared to others)

EPSS Date: 2025-06-03 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-26646
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26646

Timeline