Out-of-bounds Read in Eclipse Threadx Netx Duo
CVE-2025-55091
In NetX Duo before 6.4.4, the networking support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _nx_ip_packet_receive() function when received an Ethernet with type set as IP but no IP data.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (28.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Eclipse Threadx Netx Duo
- Eclipse Foundation Netx Duo — versions 0
Weakness classification (CWE)
References
- github.com/eclipse-threadx/netxduo/security/advisories/GHSA-pf5q-r6q5-6j2f (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-55091?
- CVE-2025-55091 is a medium-severity vulnerability in Eclipse Threadx Netx Duo, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2025-10-16.
- How severe is CVE-2025-55091?
- Medium severity. CVSS v3 base score is 6.5 out of 10.