CVE-2025-55084: In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check…
CVE-2025-55084 · Severity: medium · CVSS 5.3 · Published 2025-10-16
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
No. Junglewise Threat Intelligence has no report of CVE-2025-55084 being exploited in the wild.
How severe is CVE-2025-55084?
Medium severity, with a CVSS score of 5.3, published 16 October 2025.
Which products and versions are affected?
Eclipse Threadx Netx Duo. The advisory does not name versions.
Is there a fix for CVE-2025-55084?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-55084?
Check whether you run Eclipse Threadx Netx Duo. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.