CVE-2026-42255

Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#technitium-dns-server-change-log	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-26 04:16

Updated : 2026-06-17 10:47

NVD link : CVE-2026-42255

Mitre link : CVE-2026-42255

CVE.ORG link : CVE-2026-42255

JSON object : View

Products Affected

technitium

dnsserver

CWE

CWE-684

Incorrect Provision of Specified Functionality

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