CoreWCF vulnerabilities
We track 7 vulnerabilities in CoreWCF products. 7 are rated high or critical, and none are known to be exploited. The most recent was published on July 8, 2026.
Latest CoreWCF vulnerabilities
- 7.4 High severity
CoreWCF: Missing Encryption of Sensitive Data
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. In version 1.9.0, CoreWCF SPNEGO SecurityContextToken negotiation can expose the proof key recovered from the RSTR when TransportWithMessageCredential with Windows cl
- 7.4 High severity
CoreWCF: Authentication Bypass by Capture-replay
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF WS-Security endorsing and supporting signature verification does not ensure the selected ds:Signature covers the expected Security h
- 10.0 Critical severity
CoreWCF: Authentication Bypass by Spoofing
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF SAML 1.1 and SAML 2.0 token validation does not correctly resolve the issuer signing key or require signed tokens when IdentityConfi
- 7.4 High severity
CoreWCF: Improper Authentication
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF SAML token validation does not enforce SubjectConfirmation method URIs or holder-of-key proof keys in SamlSecurityTokenHandler, allo
- 7.4 High severity
CoreWCF: Insufficient Verification of Data Authenticity
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, SamlSerializer skips final SignatureValue verification when a CoreWCF service validates SAML tokens using a non-X.509 signing token, allowin
- 7.5 High severity
CoreWCF: Uncontrolled Resource Consumption
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, an unauthenticated remote attacker that can reach a NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding endpoint can trigger prem
- 7.5 High severity
CoreWCF: Improper Resource Shutdown or Release
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. If you have a NetFraming based CoreWCF service, extra system resources could be consumed by connections being left established instead of closing or aborting them. Th