CVE-2026-40719: Maradns

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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

Affected products

• Maradns Maradns: version 3.5.0036 only

Published 2026-04-15. Last modified 2026-06-17.