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Vulnerability record · CVE-2025-0727 · published 21 February 2025

CVE-2025-0727: Eclipse threadx netx duo vulnerability

Eclipse · Threadx Netx Duo

In NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.2, an attacker can cause an integer underflow and a subsequent denial of service by writing a very large file, by specially crafted packets with Content-Length in one packet smaller than the data request size of the other packet. A possible workaround is to disable HTTP PUT support.

5.3 CVSS 4.0 Medium EPSS 0.76% · top 46.6% CWE-191 · CWE-191
5.3CVSS 4.0 base score
0.76%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.2, an attacker can cause an integer underflow and a subsequent denial of service by writing a very large file, by specially crafted packets with Content-Length in one packet smaller than the data request size of the other packet. A possible workaround is to disable HTTP PUT support.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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/commit/c78d650be7377aae1a8704bc0ce5cc6f9f189014 Patch
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-jf6x-9mgc-p72w 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-2025-0727), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.