ISC BIND security advisory (AV26-732)
Serial number: AV26-732 Date: July 22, 2026 On July 22, 2026, ISC published security advisories to address vulnerabilities in the following products: ISC BIND 9 – versions 9.11.0 to 9.18.50 ISC BIND 9 – versions 9.20.0 to 9.20.24 ISC BIND 9 – versions 9.21.0 to 9.21.23 BIND Supported Preview Edition – versions 9.11.3-S1 to 9.18.50-S1 BIND Supported Preview Edition – versions 9.16.8-S1 to 9.18.50-S1 BIND Supported Preview Edition – versions 9.18.11-S1 to 9.18.50-S1 BIND Supported Preview Edition – versions 9.20.9-S1 to 9.20.24-S1 The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates. BIND 9 Security Vulnerability Matrix
CSIRTS triage
- What
- Vulnerabilities have been identified in ISC BIND 9.
- Who is affected
- Users of ISC BIND 9 versions specified.
- Urgency
- Remediation is necessary, but the severity is currently unknown.
- Action
- Apply the necessary updates.
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Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/isc-bind-security-advisory-av26-732
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