Eclipse NetX Duo up to 6.4.3 SSL/TLS _nx_secure_tls_process_clienthello buffer over-read

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Eclipse NetX Duo up to 6.4.3. Affected by this vulnerability is the function _nx_secure_tls_process_clienthello of the component SSL/TLS. Such manipulation leads to buffer over-read. This vulnerability is listed as CVE-2025-55081. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Eclipse NetX Duo up to 6.4.3 and classified as problematic. Affected by this issue is the function _nx_secure_tls_process_clienthello of the component SSL/TLS. The manipulation with an unknown input leads to a buffer over-read vulnerability. Using CWE to declare the problem leads to CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. Impacted is confidentiality. CVE summarizes:

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.

The weakness was presented by Ilja Van Sprundel and Justin-Stauffer as GHSA-5vrv-8j5h-h6h6. The advisory is available at github.com. This vulnerability is handled as CVE-2025-55081 since 08/06/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 6.4.4 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: NetX Duo 6.4.4

Timelineinfo

08/06/2025 CVE reserved
10/15/2025 +70 days Advisory disclosed
10/15/2025 +0 days VulDB entry created
10/27/2025 +12 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-5vrv-8j5h-h6h6
Researcher: Ilja Van Sprundel, Justin-Stauffer
Status: Confirmed

CVE: CVE-2025-55081 (🔒)
GCVE (CVE): GCVE-0-2025-55081
GCVE (VulDB): GCVE-100-328658

Entryinfo

Created: 10/15/2025 15:28
Updated: 10/27/2025 23:27
Changes: 10/15/2025 15:28 (69), 10/27/2025 23:27 (11)
Complete: 🔍
Cache ID: 216::103

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