What is CVE-2025-55089?

CVE-2025-55089 is a critical-severity vulnerability in Eclipse Threadx Filex, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2025-10-16.

How severe is CVE-2025-55089?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Eclipse Threadx Filex

CVE-2025-55089

In FileX before 6.4.2, the file support module for Eclipse Foundation ThreadX, there was a possible buffer overflow in the FileX RAM disk driver. It could cause a remote execurtion after receiving a crafted sequence of packets

Vulnerability class: Buffer Overflow

Published 2025-10-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Eclipse Threadx Filex
Eclipse Foundation Filex — versions 0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com/eclipse-threadx/filex/security/advisories/GHSA-467v-6j75-3j7g (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2025-55089?: CVE-2025-55089 is a critical-severity vulnerability in Eclipse Threadx Filex, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2025-10-16.
How severe is CVE-2025-55089?: Critical severity. CVSS v3 base score is 9.8 out of 10.