VDB-328763 · CVE-2025-55084 · EUVD-2025-34716

Eclipse NetX Duo up to 6.4.3 extension version buffer over-read

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5.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Eclipse NetX Duo up to 6.4.3. The affected element is the function in_nx_secure_tls_proc_clienthello_supported_versions_extension. The manipulation of the argument extension version leads to buffer over-read. This vulnerability is listed as CVE-2025-55084. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Eclipse NetX Duo up to 6.4.3. This issue affects the function in_nx_secure_tls_proc_clienthello_supported_versions_extension. The manipulation of the argument extension version 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. The summary by CVE is:

In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.

The weakness was presented by Justin Stauffer and Ilya Van Sprundel. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-55084 since 08/06/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.4.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-34716). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Eclipse

Name

NetX Duo

Version

License

open-source

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: 5.3
VulDB Meta Temp Score: 5.2

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

NVD Base Score: 5.3
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

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
10/16/2025 +71 days Advisory disclosed
10/16/2025 +0 days VulDB entry created
10/22/2025 +6 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Researcher: Justin Stauffer, Ilya Van Sprundel
Status: Confirmed

CVE: CVE-2025-55084 (🔒)
GCVE (CVE): GCVE-0-2025-55084
GCVE (VulDB): GCVE-100-328763
EUVD: 🔒

Entryinfo

Created: 10/16/2025 09:11
Updated: 10/22/2025 05:40
Changes: 10/16/2025 09:11 (68), 10/16/2025 09:53 (1), 10/22/2025 05:40 (10)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.