# CVE-2025-55100: In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read…

Source: https://junglewise.ai/threats/cve-2025-55100-in-usbx-before-6-4-3-the-usb-support-module-for-eclipse  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-10-17  
License: CC BY 4.0 with a link back

CVE-2025-55100 · Severity: critical · CVSS 9.1 · Published 2025-10-17

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_audio10_sam_parse_func() when parsing a list of sampling frequencies.

Technologies: [Eclipse Threadx Usbx](https://junglewise.ai/threats/technologies/threadx-usbx). Vendors: [Eclipse](https://junglewise.ai/threats/vendors/eclipse).

## Quick answers

**Is CVE-2025-55100 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-55100 being exploited in the wild.

**How severe is CVE-2025-55100?** Critical severity, with a CVSS score of 9.1, published 17 October 2025.

**Which products and versions are affected?** Eclipse Threadx Usbx. The advisory does not name versions.

**Is there a fix for CVE-2025-55100?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-55100?** Check whether you run Eclipse Threadx Usbx. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Eclipse Threadx Usbx

## Related threats

- [The function _ux_host_class_storage_media_mount() is responsible for mounting partitions on a USB mass storage device…](https://junglewise.ai/threats/cve-2025-55095-the-function-ux-host-class-storage-media-mount-is-responsible-for)
- [In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read…](https://junglewise.ai/threats/cve-2025-55099-in-usbx-before-6-4-3-the-usb-support-module-for-eclipse)
- [In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read…](https://junglewise.ai/threats/cve-2025-55098-in-usbx-before-6-4-3-the-usb-support-module-for-eclipse)
- [In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read…](https://junglewise.ai/threats/cve-2025-55097-in-usbx-before-6-4-3-the-usb-support-module-for-eclipse)
- [In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read…](https://junglewise.ai/threats/cve-2025-55096-in-usbx-before-6-4-3-the-usb-support-module-for-eclipse)