What is CVE-2026-70194?

CVE-2026-70194 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. .NET Framework Security Feature Bypass Vulnerability

Which CVE IDs does CVE-2026-70194 cover?

CVE-2026-70194 covers the following CVE IDs: CVE-2026-70194. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-70194?

CVE-2026-70194 has a CVSS v3 base score of 6.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-70194?

CVE-2026-70194 affects 4 products, including: .NET 11.0 installed on Linux; .NET 11.0 installed on Mac OS; Microsoft Visual Studio 2022 version 17.14; Microsoft Visual Studio 2026 version 18.10.

CVE-2026-70194HighCVSS 6.5

.NET Framework Security Feature Bypass Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

October 13, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-70194 →

📋 Description

Improper certificate validation in .NET Framework allows an unauthorized attacker to bypass a security feature over a network.

🎯 Affected products4

.NET 11.0 installed on Linux
.NET 11.0 installed on Mac OS
Microsoft Visual Studio 2022 version 17.14
Microsoft Visual Studio 2026 version 18.10

✅ Remediation

KBRelease Notes (Security Update) — fixed build 18.10.4 KBRelease Notes (Security Update) — fixed build 17.14.42 KBRelease Notes (Security Update) — fixed build 11.0.0-rc.2

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70194
patchhttps://dotnet.microsoft.com/download/dotnet/11.0