Read the docs
TI-2026-76889 Aliases CVE-2026-92843

Out-of-bounds read in Eclipse ThreadX NetX Duo TLS Certificate parsing

Priority MEDIUM 43CWE-125Published · 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
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

Eclipse ThreadX - NetX Duo through 6.5.1.202602 is affected. A missing bounds check in the TLS 1.3 Certificate message parser lets a malicious TLS 1.3 server cause an unsigned integer underflow and a heap out-of-bounds read (CWE-125). Any peer that processes a remote Certificate message is exposed during the normal handshake, before certificate verification completes, and a remote attacker needs no privileges or user interaction to trigger it.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A missing bounds check in the TLS 1.3 Certificate-message parser of NetX Secure lets a malicious TLS 1.3 server trigger an unsigned-integer underflow and a subsequent heap out-of-bounds read in any peer that processes a remote Certificate message. It is reachable pre-authentication, during the normal handshake, before certificate verification completes.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00297 22nd percentileScored 2026-11-07
Fix Fixed Eclipse ThreadX - NetX Duo (Eclipse Foundation): 6.5.2.202603

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 Duoup to 6.5.1.2026026.5.2.202603Patch availableCNA
  • Eclipse ThreadX - NetX Duo VendorEclipse Foundation Affected up to 6.5.1.202602 Fixed in 6.5.2.202603 Patch available CNA

Remediation

Update Eclipse ThreadX - NetX Duo to version 6.5.2.202603.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Eclipse ThreadX - NetX Duo (Eclipse Foundation) Fixed in 6.5.2.202603

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-92843
  2. 2026-10-20 CISA SSVC decision points changed

References

Other 1

  • 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