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TI-2026-83862 Aliases CVE-2026-114408

NULL pointer dereference in Eclipse ThreadX NetX Duo ICMPv6 handling

Priority MEDIUM 44CWE-252Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

Eclipse ThreadX NetX Duo versions from 6.4.5.202504 through 6.5.2.202603a, built with IPv6 path MTU discovery, are affected. The ICMPv6 Packet Too Big handler uses a destination table entry without checking that the add succeeded, which leads to a NULL pointer dereference (CWE-476). A remote sender on the network can fill the destination table, then crash the IP helper thread on targets that fault on address 0, stopping all network processing.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00364 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Eclipse FoundationEclipse ThreadX NetX Duo6.4.5.202504 – 6.5.2.202603a—No fix listedCNA
  • Eclipse ThreadX NetX Duo VendorEclipse Foundation Affected 6.4.5.202504 – 6.5.2.202603a Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Eclipse ThreadX NetX Duo.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-114408
  2. 2026-11-04 Priority changed: MEDIUM → LOW
  3. 2026-11-04 Affected versions changed · CNA
  4. 2026-11-04 CISA SSVC decision points changed
  5. 2026-11-04 Priority changed: LOW → MEDIUM

References

Other 2

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2026-81947 Unauthenticated command injection in Eclipse Che che-machine-exec CVSS 3.1CRITICAL 9.8
  • TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
  • TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
  • TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
  • TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3
See all 466 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences