Vulnerability in Microsoft Visual Studio 2022 Version 17.12
CVE-2026-50659
Improper encoding or escaping of output in .NET allows an authorized attacker to perform spoofing over a network.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Microsoft Visual Studio 2022 Version 17.12 — versions 17.12.0
- Microsoft Visual Studio 2022 Version 17.14 — versions 17.14.0
- Microsoft Visual Studio 2026 Version 18.7 — versions 18.0
- Microsoft .Net 10.0 — versions 10.0.0
- Microsoft .Net 8.0 — versions 8.0.0
- Microsoft .Net 9.0 — versions 9.0.0
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-50659?
- CVE-2026-50659 is a medium-severity vulnerability in Microsoft Visual Studio 2022 Version 17.12, classified under Improper Encoding or Escaping of Output. CVSS score: 6.5/10. Published 2026-07-14.
- How severe is CVE-2026-50659?
- Medium severity. CVSS v3 base score is 6.5 out of 10.