CVE-2026-40719

Summary

Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved.

Affected Software

Weaknesses

• CWE-670: CWE-670 Always-Incorrect Control Flow Implementation

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/samboy/MaraDNS/security/advisories/GHSA-cfc6-vhrv-62cj

References

• https://github.com/samboy/MaraDNS/security/advisories/GHSA-cfc6-vhrv-62cj
• https://maradns.samiam.org/changelog.html

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