CVE-2025-55099: Eclipse Threadx Usbx

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Eclipse Threadx Usbx: before 6.4.3.202503 (fixed in 6.4.3.202503)

Published 2025-10-17. Last modified 2026-10-09.