Oct 2026: .NET Framework Security Feature Bypass Vulnerability
CVE-2026-70194 Published on October 13, 2026
.NET Framework Security Feature Bypass Vulnerability
Improper certificate validation in .NET Framework allows an unauthorized attacker to bypass a security feature over a network.
Weakness Type
Improper Certificate Validation
The software does not validate, or incorrectly validates, a certificate. When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by interfering in the communication path between the host and client. The software might connect to a malicious host while believing it is a trusted host, or the software might be deceived into accepting spoofed data that appears to originate from a trusted host.
Products Associated with CVE-2026-70194
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Affected Versions
Microsoft .NET 11.0:- Version 11.0.0 and below 11.0.0-rc.2 is affected.
- Version 17.14.0 and below 17.14.42 is affected.
- Version 18.10.0 and below 18.10.4 is affected.