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Vulnerability IntelligenceCVE-2026-42255

CVE-2026-42255

HIGH7.2

Technitium DNS Server before 15

Published Apr 26, 2026

Modified 3 weeks ago

Details

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

References

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

https://www.cve.org/CVERecord?id=CVE-2026-42255

CVSS Analysis

CVSS v3.1

7.2

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

NoneC:N

Integrity

LowI:L

Availability

LowA:L

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedApr 26, 2026

ModifiedApr 27, 2026

CVE-2026-42255 | Mondoo Vulnerability Intelligence