CVE-2022-48256: Technitium DNS Server

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.

Affected products

• Technitium DNS Server: before 10.0 (fixed in 10.0)

Published 2023-01-13. Last modified 2026-06-17.