CVE-2026-106465Missing HelloVerifyRequest cookie validation in the NetX Secure DTLS server

Descripción

In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603, the NetX Secure DTLS server never compares the cookie a client returns with the one it issued, and treats any non-empty cookie as verified. A remote attacker can make the server send its full handshake flight, several kilobytes, to a forged source address, using it to reflect amplified traffic at a third party.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-7c5f-gmpm-f655
• https://gitlab.eclipse.org/security/cve-assignment/-/work_items/379