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TI-2025-34771 Aliases CVE-2025-55081

Potential out of bound read in _nx_secure_tls_process_clienthello()

Priority LOW 37CWE-126Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-126 and the CVSS impact.

Summary

In Eclipse Foundation NextX Duo before 6.4.4, a module of ThreadX, the _nx_secure_tls_process_clienthello() function was missing length verification of certain SSL/TLS client hello message: the ciphersuite length and compression method length. In case of an attacker-crafted message with values outside of the expected range, it could cause an out-of-bound read.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00369 31st percentileScored 2026-11-07
Fix Fixed NetX Duo (Eclipse Foundation): 6.4.4

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 FoundationNetX Duobefore 6.4.46.4.4Patch availableCNA
  • NetX Duo VendorEclipse Foundation Affected before 6.4.4 Fixed in 6.4.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:*before 6.4.4.202503VulnerableEclipse Foundation
  • cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:* Versions before 6.4.4.202503 Vulnerable ·Eclipse Foundation

Remediation

  • Fix · CNA NetX Duo (Eclipse Foundation) Fixed in 6.4.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Eclipse Foundation NetX Duo 6.4.4

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2025-34772 Potential out of bound read and info leak in_nx_secure_tls_psk_identity_find()Priority LOW 36
    • TI-2025-34773 Broken bounds check in Broken bounds check in _nx_secure_tls_process_clienthello_psk_extension()Priority LOW 30
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-55081

References

Advisory 1

  • TI-2025-34780 Potential out of bound read in _nx_ip_packet_receive() CVSS 4.0MEDIUM 6.9
  • TI-2025-34775 Web http client: Unchecked Server-Side Malicious Packet Issue CVSS 4.0HIGH 8.8
  • TI-2025-34790 Uncontrolled resource consumption in Eclipse ThreadX - NetX Duo CVSS 4.0HIGH 8.7
  • TI-2024-02278 Integer wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc() CVSS 3.1CRITICAL 9.8
  • TI-2026-09997 Double free in Eclipse ThreadX - NetX Duo CVSS 3.1HIGH 7.5
  • TI-2025-34783 Potential out-of-bounds read in _nx_icmpv6_validate_options() CVSS 4.0MEDIUM 6.9
See all 20 →

Sources

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