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Vulnerability record · CVE-2025-55086 · published 20 October 2025

CVE-2025-55086: Eclipse threadx netx duo out-of-bounds read vulnerability

Eclipse · Threadx Netx Duo

In NetXDuo version before 6.4.4, a networking support module for Eclipse Foundation ThreadX, in the DHCPV6 client there was an unchecked index extracting the server DUID from the server reply. With a crafted packet, an attacker could cause an out of memory read.

6.3 CVSS 4.0 Medium EPSS 0.41% · top 66.8% CWE-125 · Out-of-bounds readCWE-1285 · CWE-1285
6.3CVSS 4.0 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

In NetXDuo version before 6.4.4, a networking support module for Eclipse Foundation ThreadX, in the DHCPV6 client there was an unchecked index extracting the server DUID from the server reply. With a crafted packet, an attacker could cause an out of memory read.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/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-99pw-cp79-2j5j Vendor Advisory

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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-2025-55086), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.