CVE-2025-55081: In Eclipse Foundation NextX Duo before 6.4.4, a module of ThreadX, the _nx_secure_tls_process_clienthello() function…
CVE-2025-55081 · Severity: critical · CVSS 9.1 · Published 2025-10-15
In Eclipse Foundation NextX Duo before 6.4.4, a module of ThreadX, the _nx_secure_tls_process_clienthello() function was missing length verification of
certain SSL/TLS client hello message: the ciphersuite length and
compression method length. In case of an attacker-crafted message with
values outside of the expected range, it could cause an out-of-bound
read.
No. Junglewise Threat Intelligence has no report of CVE-2025-55081 being exploited in the wild.
How severe is CVE-2025-55081?
Critical severity, with a CVSS score of 9.1, published 15 October 2025.
Which products and versions are affected?
Eclipse Threadx Netx Duo. The advisory does not name versions.
Is there a fix for CVE-2025-55081?
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-2025-55081?
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.