ISC BIND security advisory (AV26-931)
Canadian Cyber Centre relays ISC advisory on vulnerabilities affecting multiple BIND 9 branches; administrators should review the matrix and apply updates.
On September 16, 2026, the Canadian Centre for Cyber Security (AV26-931) relayed ISC's advisory on vulnerabilities affecting ISC BIND 9 versions prior to or equal to 9.18.50, 9.20.27, and 9.21.25, including their -S1 variants. No specific CVE identifiers or exploitation details are provided in the bulletin. Administrators are directed to ISC's BIND 9 Software Vulnerability Matrix and encouraged to apply updates as they become available.
- Affects BIND 9 branches up to 9.18.50, 9.20.27, and 9.21.25, including stable variants.
- CCCS urges administrators to consult ISC's vulnerability matrix and patch promptly.
- No exploitation or specific CVE details are given in the relayed bulletin.
- Vendors
- ISC
- Products
- BIND 9
- Organizations
- Canadian Centre for Cyber Security
- Countries
- Canada
From the original article
1 min read at cyber.gc.ca
Serial Number: AV26-931 Date: September 16, 2026 As of September 16, 2026, ISC is affected by vulnerabilities in the following product: ISC BIND 9 Prior to or equal to 9. 18. 50 Prior to or equal to 9.
cyber.gc.ca
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