[ CVE-2026-92843 · Published 20 Oct 2026 ]

Vulnerability in Eclipse Foundation Eclipse ThreadX - NetX Duo

CVSS 8.7 EPSS <1%No fix listed yet

[ Description ]Official description

A missing bounds check in the TLS 1.3 Certificate-message parser of NetX Secure lets a malicious TLS 1.3 server trigger an unsigned-integer underflow and a subsequent heap out-of-bounds read in any peer that processes a remote Certificate message. It is reachable pre-authentication, during the normal handshake, before certificate verification completes.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.