CVE-2025-55102

HIGH

Eclipse ThreadX - NetX Duo < 6.4.3 - Denial of Service via IPv6 Packet Too Big Handling

Title source: llm

Description

A denial-of-service vulnerability exists in the NetX IPv6 component functionality of Eclipse ThreadX NetX Duo. A specially crafted network packet of "Packet Too Big" with more than 15 different source address can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

References (1)

Core 1

Core References

Vendor Advisory

https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-f3rx-xrwm-q2rf

Scores

CVSS v3 7.5

EPSS 0.0036

EPSS Percentile 27.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-400 CWE-404 CWE-770

Status published

Products (2)

eclipse/threadx_netx_duo < 6.4.5.202504

Eclipse Foundation/Eclipse ThreadX - NetX Duo < 6.4.3

Published Jan 27, 2026

Tracked Since Feb 18, 2026