High MSRC-CVE-2026-32203 1 CVE

.NET and Visual Studio Denial of Service Vulnerability

Published Apr 14, 2026 · Updated Apr 20, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
18.4.4 — https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes
17.12.19 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
10.0.6 — https://support.microsoft.com/help/5086095
8.0.26 — https://support.microsoft.com/help/5086096
9.0.15 — https://support.microsoft.com/help/5086097

Vulnerabilities 1

High 7.5

CVE-2026-32203

.NET and Visual Studio Denial of Service Vulnerability

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

Microsoft Microsoft Visual Studio 2022 version 17.14 Microsoft Visual Studio 2022 version 17.12 .NET 8.0 Ubuntu NuGet

Apr 14, 2026

Revision history

2026-04-20 #2
Download links fixed
2026-04-14 #1
Information published.

References

CVE-2026-32203 .NET and Visual Studio Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32203
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss