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High severity7.5NVD Advisory· Published Sep 16, 2026

CVE-2026-19666

CVE-2026-19666

Description

On a resolver configured to use `dns64, if an applicable answer from the authoritative server is malformed in a specific way, the resolver named` process will exit unexpectedly. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

Affected products

1
  • Isc/Bindllm-fuzzy
    Range: 9.11.0 - 9.18.50, 9.20.0 - 9.20.27, 9.21.0 - 9.21.25, 9.11.3-S1 - 9.18.50-S1, 9.20.9-S1 - 9.20.27-S1

Patches

Vulnerability mechanics

References

3

News mentions

0

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