CVE-2026-42255

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Summary

CVECVE-2026-42255
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-26 04:16:05 UTC
Updated2026-04-26 04:16:05 UTC
DescriptionTechnitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

Problem Types: CWE-684 | CWE-684 CWE-684 Incorrect Provision of Specified Functionality

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
3.1CNACVSS7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Technitium DnsServer affected 15.0.0 custom Not specified

References

ReferenceSourceLinkTags
github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md [email protected] github.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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