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CVE-2026-106465

CVE-2026-106465

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

The NetX Secure DTLS server sends a HelloVerifyRequest carrying a freshly generated cookie, but never checks the cookie a client returns. The ClientHello parser copies the client's cookie bytes over the value the server issued, and the server then decides whether the client has been verified from the cookie's length alone. A peer that puts any single cookie byte in its first ClientHello skips the verification exchange entirely, so the server has no return-routability check and completes handshakes for forged source addresses.

CVSS 8.7 · Élevée · EPSS 0,3% · Correctif disponible

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Mise à jour

Produits et versions concernés

  • netx duo

    Versions du logiciel
    • ≥ 0, ≤ 6.5.2.202603: Concernée (custom)
    • 6.5.2.202603a: Non concernée

    Mettez à jour vers 6.5.2.202603a

Sources originales

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