Integer overflow in Eclipse Threadx Netx Duo
CVE-2025-2258
In NetX Duo component HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.3, an attacker can cause an integer underflow and a subsequent denial of service by writing a very large file, by specially crafted packets with Content-Length smaller than the data request size. A possible workaround is to disable HTTP PUT support. This issue follows an uncomplete fix in CVE-2025-0728.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Eclipse Threadx Netx Duo
- Eclipse Foundation Threadx — versions 0
Weakness classification (CWE)
References
- github.com/eclipse-threadx/netxduo/commit/6c8e9d1c95d71bd4b313e1cc37d8f8841543b… (Patch, patch)
- github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chqp-8vf8-cj25 (vendor-advisory, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-2258?
- CVE-2025-2258 is a high-severity vulnerability in Eclipse Threadx Netx Duo, classified under Integer Underflow. CVSS score: 7.5/10. Published 2025-04-06.
- How severe is CVE-2025-2258?
- High severity. CVSS v3 base score is 7.5 out of 10.