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5.3 Medium

CVE-2026-3592 BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack

Description

BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

Affected products and versions

Product Affected versions Fixed in
BIND 9 9.21 9.21.0 → 9.21.21 No fix stated
BIND 9 9.20 9.20.0 → 9.20.22 No fix stated
BIND 9 9.18 9.18.0 → 9.18.48 No fix stated
BIND 9 9.11 9.11.0 → 9.16.50 No fix stated

References

Timeline

  1. Published
  2. Last modified

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