Zyxel security advisory (AV26-399)

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        <div><p><strong>Serial number: </strong>AV26-399<br /><strong>Date: </strong>April 28, 2026</p>

On April 28, 2026, Zyxel published a security advisory to address vulnerabilities in the following products:

  • 4G LTE/5G NR CPE – multiple versions and models
  • DSL/Ethernet CPE – multiple versions and models
  • Fiber ONTs – multiple versions and models
  • Wireless Extenders – multiple versions and models

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

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Article Link: Zyxel security advisory (AV26-399) - Canadian Centre for Cyber Security