VDB-328902 · CVE-2025-55099 · GCVE-0-2025-55099

Eclipse USBX up to 6.4.2 USB Support _ux_host_class_audio_alternate_setting_locate frequency out-of-bounds

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Eclipse USBX up to 6.4.2. This affects the function _ux_host_class_audio_alternate_setting_locate of the component USB Support Module. The manipulation of the argument frequency results in out-of-bounds. This vulnerability is reported as CVE-2025-55099. An attack on the physical device is feasible. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Eclipse USBX up to 6.4.2. It has been classified as problematic. Affected is the function _ux_host_class_audio_alternate_setting_locate of the component USB Support Module. The manipulation of the argument frequency with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _ux_host_class_audio_alternate_setting_locate() when parsing a descriptor with attacker-controlled frequency fields.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-55099 since 08/06/2025. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 6.4.3 eliminates this vulnerability.

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Productinfo

Vendor

Eclipse

Name

USBX

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: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
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: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

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: USBX 6.4.3

Timelineinfo

08/06/2025 CVE reserved
10/17/2025 +72 days Advisory disclosed
10/17/2025 +0 days VulDB entry created
10/25/2025 +8 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-55099 (🔒)
GCVE (CVE): GCVE-0-2025-55099
GCVE (VulDB): GCVE-100-328902

Entryinfo

Created: 10/17/2025 08:05
Updated: 10/25/2025 09:28
Changes: 10/17/2025 08:05 (69), 10/25/2025 09:28 (11)
Complete: 🔍
Cache ID: 216::103