CVE-2026-3592

Summary

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 Software

VendorProductVersion RangeStatus
ISCBIND 99.11.0 <= 9.16.50affected
ISCBIND 99.18.0 <= 9.18.48affected
ISCBIND 99.20.0 <= 9.20.22affected
ISCBIND 99.21.0 <= 9.21.21affected
ISCBIND 99.11.3-S1 <= 9.16.50-S1affected
ISCBIND 99.18.11-S1 <= 9.18.48-S1affected
ISCBIND 99.20.9-S1 <= 9.20.22-S1affected

Weaknesses

  • CWE-408: CWE-408 Incorrect Behavior Order - Early Amplification

Workarounds

No workarounds known.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References