CVE-2018-8356

moderate-risk
Published 2018-07-11

A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.

Do I need to act?

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0.23% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (19)

.Net Framework Developer Pack

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/104664
Third Party Advisory http://www.securitytracker.com/id/1041257
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356
Third Party Advisory http://www.securityfocus.com/bid/104664
Third Party Advisory http://www.securitytracker.com/id/1041257
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356
38
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 19/34 · Moderate