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CVE-2026-54772 — Vulnerability in CoreWCF.NetFramingBase — CVE Details

HIGH

CoreWCF: Pre-authentication infinite-loop CPU exhaustion in CoreWCF net.tcp / net.pipe / net.uds framing handshake

Published June 19, 2026Updated June 19, 2026Source: osv

Summary

### 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

Advisory Timeline

  • First published June 19, 2026 (115 days ago).
  • Last revised June 19, 2026 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update CoreWCF.NetFramingBase to 1.9.1 or later
dotnet add package CoreWCF.NetFramingBase --version 1.9.1
NuGet
Update CoreWCF.NetFramingBase to 1.8.1 or later
dotnet add package CoreWCF.NetFramingBase --version 1.8.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
CoreWCF.NetFramingBase
nuget
1.9.01.9.1
CoreWCF.NetFramingBase
nuget
1.4.0, 1.4.0-preview1, 1.4.1, 1.4.2 (+7 more)1.8.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2026-54772?
CoreWCF: Pre-authentication infinite-loop CPU exhaustion in CoreWCF net.tcp / net.pipe / net.uds framing handshake This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2026-54772?
CVE-2026-54772 affects CoreWCF.NetFramingBase. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-54772 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-p86g-xrr2-pf7c

Related CVEs

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  • CVE-2026-106115
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    ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer

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