CVE-2025-2259 Information

Description

In NetX 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 in one packet smaller than the data request size of the other packet. A possible workaround is to disable HTTP PUT support.

This issue follows an incomplete fix of CVE-2025-0727

Reference

https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9e https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rq