Integer Underflow (Wrap or Wraparound) Affecting azure-rtos/usbx package, versions [,6.4.3.202503)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-AZURERTOSUSBX-13638664
- published20 Oct 2025
- disclosed17 Oct 2025
- creditUnknown
Introduced: 17 Oct 2025
NewCVE-2025-55096 (opens in a new tab)How to fix?
Upgrade azure-rtos/usbx to version 6.4.3.202503 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) in the _ux_host_class_hid_report_descriptor_get() function when parsing a descriptor of a USB HID device. An attacker can cause an out-of-bounds read by supplying a specially crafted USB HID descriptor.