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CVE-2026-114408 Details

Description

In Eclipse ThreadX NetX Duo versions 6.4.5.202504 through 6.5.2.202603a, built with IPv6 path MTU discovery, the ICMPv6 Packet Too Big handler uses the destination-table entry it adds without checking that the add succeeded. A sender on the network can fill the destination table with Packet Too Big messages quoting new destinations, after which the next message makes the IP helper thread dereference a NULL pointer, crashing it on targets that fault on address 0 and stopping all network processing.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-xjgr-2wmf-f78j	[email protected]
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/482	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-252	Unchecked Return Value	[email protected]
CWE-476	NULL Pointer Dereference	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	[email protected]
Nov 2, 2026	CVE Modified	CISA-ADP
Nov 2, 2026	New CVE Received	[email protected]