Mitel security advisory (AV26-611)

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        <div><p><strong>Serial number: </strong>AV26-611<br /><strong>Date: </strong>June 17, 2026</p>

On June 17, 2026, Mitel published a security advisory to address vulnerabilities in the following products. Included were critical updates for the following:

  • MiCollab - multiple versions
  • MiVoice Business Solution Virtual Instance (MiVB SVI) - version 2.1.0.9-2 and prior

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

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Article Link: Mitel security advisory (AV26-611) - Canadian Centre for Cyber Security