CVE-2026-40719

EUVD-2026-22839
Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 30.21%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
maradnsmaradns
3.5.36
CNA
Debian logo
Debian Releases
Debian Product
Codename
maradns
bullseye
postponed
bullseye (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
maradns
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
dne
resolute
dne
xenial
needs-triage