CVE-2026-54777
Medium · 6.5CVSS
6.5
EPSS
—
Published
Jul 8, 2026
CISA due date
—
The record
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 NetNamedPipe transport accepts attachment to a pre-existing named pipe instance, allowing local interception of NetNamedPipe traffic when an attacker races NamedPipeListener startup between shared memory GUID publication and service named pipe creation. This issue is fixed in versions 1.8.1 and 1.9.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-53613 util-linux is a random collection of Linux utilities. CWE-367
- CVE-2026-53612 util-linux is a random collection of Linux utilities. CWE-367
- CVE-2026-67693 An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via… CWE-367
- CVE-2026-106451 yawkat LZ4 Java provides LZ4 compression for Java. CWE-367
- CVE-2026-86805 A time-of-check to time-of-use (TOCTOU) race condition in the dynamic loader (ld.so) of… CWE-367
- CVE-2026-68488 A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following… CWE-367
- CVE-2026-87554 Race condition in Chromoting in Google Chrome on on Windows prior to 153.0.8010.36… CWE-367
- CVE-2026-87523 Race condition in DataTransfer in Google Chrome prior to 153.0.8010.36 allowed a remote… CWE-367