What is CVE-2025-55095?

CVE-2025-55095 is a medium-severity vulnerability in Eclipse Threadx_usbx, classified under Stack-based Buffer Overflow. CVSS score: 4.2/10. Published 2026-01-27.

How severe is CVE-2025-55095?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Buffer overflow in Eclipse Threadx_usbx

CVE-2025-55095

The function _ux_host_class_storage_media_mount() is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next log…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L.

Affected products

Eclipse Threadx_usbx
Eclipse Foundation Threadx - Usbx — versions 0

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow
CWE-674 — Uncontrolled Recursion
CWE-787 — Out-of-bounds Write

References

emo@eclipse.org (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2025-55095?: CVE-2025-55095 is a medium-severity vulnerability in Eclipse Threadx_usbx, classified under Stack-based Buffer Overflow. CVSS score: 4.2/10. Published 2026-01-27.
How severe is CVE-2025-55095?: Medium severity. CVSS v3 base score is 4.2 out of 10.