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TI-2026-76890 Aliases CVE-2026-92853

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 from 0 through 6.5.1.202602 has an out-of-bounds read in the NetX Secure TLS 1.3 Certificate parser (CWE-125). A zero-length Certificate message wraps the length counter, which disables the bounds check and lets the parser read past the session packet buffer. An unauthenticated remote attacker can trigger it with a four-byte handshake header, before authentication.

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

Description from the CNA

The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned length to `0xFFFFFFFF`, which makes the bounds check that follows vacuous and sends the parser reading past the session packet buffer. The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication.

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

Upgrade Eclipse ThreadX NetX Duo to 6.5.2.202603, the fixed version.

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-2026-92853
  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