Out-of-bounds Read in Eclipse Threadx_usbx

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 issue in _ux_host_class_audio10_sam_parse_func() when parsing a list of sampling frequencies.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (39.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-55100?
CVE-2025-55100 is a critical-severity vulnerability in Eclipse Threadx_usbx, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2025-10-17.
How severe is CVE-2025-55100?
Critical severity. CVSS v3 base score is 9.1 out of 10.