CVE-2026-54772
HIGHCVSS v3.1: 7.5
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 7.5 v3.1 · NVD
- EPSS
- EPSS not provided by FIRST.org for this CVE
- CISA KEV
- No
- Type
- Resource Exhaustion (DoS) · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Published
- 2026-07-08 · Modified: 2026-07-08
- References
- Jump to references (6)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Patch https://github.com/CoreWCF/CoreWCF/commit/03ddbced349931a2da6c0efcdf745c0722eff77c
- Patch https://github.com/CoreWCF/CoreWCF/commit/7ddd966d6e58564a32ab30c825dd693b45a34a55
- Patch https://github.com/CoreWCF/CoreWCF/commit/c4212988cd6fd472783d0413426eeac61044097a
- Patch https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
- Patch https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1
- Vendor advisory https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-p86g-xrr2-pf7c