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CVE-2025-55081

Potential out of bound read in _nx_secure_tls_process_clienthello()

Published: Oct 15, 2025Updated: Oct 27, 2025 Sources: CVE List NVDCWE-126
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.3%
Top 74.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-126CWE-125

Affected Products

threadx netx duoeclipseDevTools & CI
NetX DuoEclipse FoundationOSS Libraries
eclipseoss-projectBEDevTools & CIaka eclipse-foundation
eclipse foundationoss-projectDEOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
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References

https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-5vrv-8j5h-h6h6
github.com

Timeline

Published
Oct 15, 2025
Last Updated
Oct 27, 2025

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