What is CVE-2025-55086?

CVE-2025-55086 is a critical-severity vulnerability in Eclipse Threadx_netx_duo, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2025-10-20.

How severe is CVE-2025-55086?

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

Out-of-bounds Read in Eclipse Threadx_netx_duo

CVE-2025-55086

In NetXDuo version before 6.4.4, a networking support module for Eclipse Foundation ThreadX, in the DHCPV6 client there was an unchecked index extracting the server DUID from the server reply. With a crafted packet, an attacker could cause…

Vulnerability class: Buffer Overflow

EPSS: 0.004 (28.2th percentile) — read the EPSS interpretation.

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.

Affected products

Eclipse Threadx_netx_duo
Eclipse Foundation Nextx Duo — versions 0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read
CWE-1285

References

emo@eclipse.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-55086?: CVE-2025-55086 is a critical-severity vulnerability in Eclipse Threadx_netx_duo, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2025-10-20.
How severe is CVE-2025-55086?: Critical severity. CVSS v3 base score is 9.8 out of 10.