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BIND 9 9.21

There is no known end-of-support date for BIND 9 9.21.

Supported

Latest version: 9.21.27, released on 09/10/2026

End of support: no date known

Vulnerabilities in BIND 9 9.21

We do not track a vulnerability database for BIND 9, so this page shows versions and end of support only.

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