CVE-2026-54772
Published:June 19, 2026
Updated:June 21, 2026
Impact An unauthenticated remote attacker can pin one server thread‑pool worker at 100 % CPU per connection. With a few connections, the CPU usage can be exhausted. Preconditions An attacker being able to reach a service which is exposing an endpoint using one of NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding. Patches Fixed in CoreWCF v1.8.1 and v1.9.1 Workarounds None
Affected Packages
corewcf.netframingbase (DOT_NET):
Affected version(s) >=1.4.0.2 <1.8.1Fix Suggestion:
Update to version 1.8.1https://github.com/CoreWCF/CoreWCF.git (GITHUB):
Affected version(s) =v1.9.0 <v1.9.1Fix Suggestion:
Update to version v1.9.1https://github.com/CoreWCF/CoreWCF.git (GITHUB):
Affected version(s) >=v1.4.0 <v1.8.1Fix Suggestion:
Update to version v1.8.1corewcf.netframingbase (NUGET):
Affected version(s) =1.9.0 <1.9.1Fix Suggestion:
Update to version 1.9.1corewcf.netframingbase (NUGET):
Affected version(s) >=1.4.0 <1.8.1Fix Suggestion:
Update to version 1.8.1Related Resources (2)
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Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH