What is CVE-2026-67554?

CVE-2026-67554 is a medium-severity vulnerability in Apache Software Foundation Qpid Proton Dotnet, classified under CWE-606. CVSS score: 6.5/10. Published 2026-08-05.

How severe is CVE-2026-67554?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apache Software Foundation Qpid Proton Dotnet

CVE-2026-67554

An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. User…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Software Foundation Qpid Proton Dotnet — versions 0

Weakness classification (CWE)

CWE-606

References

security@apache.org (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-67554?: CVE-2026-67554 is a medium-severity vulnerability in Apache Software Foundation Qpid Proton Dotnet, classified under CWE-606. CVSS score: 6.5/10. Published 2026-08-05.
How severe is CVE-2026-67554?: Medium severity. CVSS v3 base score is 6.5 out of 10.