What’s Vulnerable › Vulnerabilities
CVE-2025-55081: Potential out of bound read in _nx_secure_tls_process_clienthello()
- Severity: critical (CVSS 9.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-10-15 · updated 2026-10-08
- Weakness: CWE-126
Description
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.
Affected products
- Eclipse Foundation NetX Duo: before 6.4.4.202503 — fixed in 6.4.4.202503
How to fix
Upgrade to a fixed version: Eclipse Foundation NetX Duo 6.4.4.202503. Check the vendor advisory for mitigations.
References
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