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Technitium CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

MEDIUM Technitium CVE published 2026-05-19

CVE-2026-45557

CVE-2026-45557 is a denial-of-service issue in Technitium DNS Server where the resolver aggressively retries fetching missing RRSIG records or mismatched DNSKEY records. A domain controlled by an attacker can make a vulnerable system generate excessive network traffic. The vendor fix is in version 15.0.