High MSRC-CVE-2026-96229 1 CVE

.NET Information Disclosure Vulnerability

Published Oct 13, 2026 · Updated Oct 13, 2026

Vendor: Microsoft

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What type of information could be disclosed by this vulnerability?
Exploiting this vulnerability could allow the disclosure of NetNTLMv2 hashes.

Security updates
18.10.4 — https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes
17.14.42 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
11.0.0-rc.2 — https://github.com/dotnet/announcements/issues/477
8.0.32 — https://support.microsoft.com/help/5130034
9.0.21 — https://support.microsoft.com/help/5130035
10.0.13 — https://support.microsoft.com/help/5130036

Vulnerabilities 1

Medium 6.5

CVE-2026-96229

.NET Information Disclosure Vulnerability

Permissive list of allowed inputs in .NET allows an unauthorized attacker to disclose information over a network.

Microsoft Microsoft Visual Studio 2022 version 17.14 .NET 9.0 runtime .NET 10.0 runtime Ubuntu Alpine NuGet

Oct 13, 2026

Revision history

2026-10-13 #1
Information published.

References

CVE-2026-96229 .NET Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96229
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