WatchGuard security advisory (AV26-865)

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        <div><p><strong>Serial Number:</strong> AV26-865<br /><strong>Date:</strong> August&nbsp;31, 2026</p>

As of August 27, 2026, WatchGuard is affected by vulnerabilities in the following products:

  • Dimension
    • Prior to 2.3.1
  • Fireware OS
    • Prior to 12.12.2
    • Prior to 12.5.20
    • Prior to 2026.2.2

The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available.

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Article Link: WatchGuard security advisory (AV26-865) - Canadian Centre for Cyber Security