CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-54772
High (7.5). EPSS 0.8% chance of exploitation in the next 30 days.
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 premature EOF handling in the CoreWCF net.tcp, net.pipe, or net.uds framing handshake and pin one server thread-pool worker at full CPU per connection. This issue is fixed in versions 1.8.1 and 1.9.1.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-400, CWE-835
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/CoreWCF/CoreWCF/commit/03ddbced349931a2da6c0efcdf745c0722eff77c
- https://github.com/CoreWCF/CoreWCF/commit/7ddd966d6e58564a32ab30c825dd693b45a34a55
- https://github.com/CoreWCF/CoreWCF/commit/c4212988cd6fd472783d0413426eeac61044097a
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
- https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1