CVE-2026-40719

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Summary

CVECVE-2026-40719
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-15 07:16:11 UTC
Updated2026-04-17 15:38:09 UTC
DescriptionDeadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000170000 probability, percentile 0.041200000 (date 2026-04-21)

Problem Types: CWE-670 | CWE-670 CWE-670 Always-Incorrect Control Flow Implementation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MaraDNS MaraDNS affected 3.5.0036 custom Not specified

References

ReferenceSourceLinkTags
maradns.samiam.org/changelog.html [email protected] maradns.samiam.org
github.com/samboy/MaraDNS/security/advisories/GHSA-cfc6-vhrv-62cj 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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