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CVE-2026-92853 The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first…

Description

The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned length to `0xFFFFFFFF`, which makes the bounds check that follows vacuous and sends the parser reading past the session packet buffer. The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication.

Produits et versions touchés

Produit Versions touchées Corrigé en
Eclipse ThreadX - NetX Duo 6.5 premières → 6.5.1.202602 6.5.2.202603

Références

Chronologie

  1. Publiée
  2. Dernière modification

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