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High severity7.2NVD Advisory· Published Apr 26, 2026· Updated Apr 29, 2026

CVE-2026-42255

CVE-2026-42255

Description

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

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

Technitium/Dnsserver2 versions
cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:*range: <15.0
- (no CPE)range: <15.0

Patches

Vulnerability mechanics

References

1

github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.mdnvdRelease Notes

News mentions

0

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