CVE-2025-26646
HIGHCVSS 8/10EPSS 1.10%
Last modified
CVE-2025-26646 is a high-severity vulnerability rated 8/10 on the CVSS scale. 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.. EPSS estimates a 1.10% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Build Tools | < 17.13.7 |
| Microsoft | Visual Studio 2022 | >= 17.8.0, < 17.8.21 |
| Microsoft | Visual Studio 2022 | >= 17.10.0, < 17.10.15 |
| Microsoft | Visual Studio 2022 | >= 17.12.0, < 17.12.8 |
| Microsoft | Visual Studio 2022 | >= 17.13.0, < 17.13.7 |
| Microsoft | .Net | >= 9.0.0, < 9.0.5 |
| Microsoft | .Net | >= 8.0.0, < 8.0.16 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-26646?
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.
How severe is CVE-2025-26646?
CVE-2025-26646 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.
How do I fix CVE-2025-26646?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-26646?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST