ISC BIND security advisory (AV26-049)

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        <div><p><strong>Serial number: </strong>AV26-049<br /><strong>Date: </strong>January 22, 2026</p>

On January 21, 2026, ISC published a security advisory to address a vulnerability in the following products:

  • ISC BIND 9 – versions 9.18.40 to 9.18.43
  • ISC BIND 9 – versions 9.20.13 to 9.20.17
  • ISC BIND 9 – versions 9.21.12 to 9.21.16
  • BIND Supported Preview Edition – versions 9.18.40-S1 to 9.18.43-S1
  • BIND Supported Preview Edition – versions 9.20.13-S1 to 9.20.17-S1

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

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Article Link: ISC BIND security advisory (AV26-049) - Canadian Centre for Cyber Security