← Vulnerability feed

Vulnerability record · CVE-2025-55081 · published 15 October 2025

CVE-2025-55081: Eclipse threadx netx duo out-of-bounds read vulnerability

Eclipse · Threadx Netx Duo

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.

6.9 CVSS 4.0 Medium EPSS 0.37% · top 71.6% CWE-126 · CWE-126CWE-125 · Out-of-bounds read
6.9CVSS 4.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-5vrv-8j5h-h6h6 Vendor Advisory

Track CVE-2025-55081 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-2452Eclipse threadx netx duo classic buffer overflow vulnerabilityIn Eclipse ThreadX NetX Duo before 6.4.0, if an attacker can control parameters of __portable_aligned_alloc() could cause an integer wrap-around and …EPSS 0.90%8.8CVE-2025-55085Eclipse threadx netx duo out-of-bounds read vulnerabilityIn NextX Duo before 6.4.4, in the HTTP client module, the network support code for Eclipse Foundation ThreadX, the parsing of HTTP header fields was …EPSS 0.61%8.7CVE-2025-55102Eclipse threadx netx duo uncontrolled resource consumption vulnerabilityA denial-of-service vulnerability exists in the NetX IPv6 component functionality of Eclipse ThreadX NetX Duo. A specially crafted network packet of …EPSS 0.40%7.5CVE-2026-11576Eclipse threadx netx duo double free vulnerabilityThe security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label,…EPSS 0.46%7.1CVE-2025-2260Eclipse threadx netx duo vulnerabilityIn NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.3, an attacker can cause a denial of service by specially crafted pa…EPSS 0.95%7.1CVE-2025-0726Eclipse threadx netx duo vulnerabilityIn NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.2, an attacker can cause a denial of service by specially crafted pa…EPSS 0.76%6.9CVE-2025-55094Eclipse threadx netx duo out-of-bounds read vulnerabilityIn NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_icmpv6_v…EPSS 0.41%6.9CVE-2025-55092Eclipse threadx netx duo out-of-bounds read vulnerabilityIn Eclipse Foundation NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read is…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2025-55081), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.