CVE-2023-46317: Nic Knot Resolver

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.

Affected products

• Nic Knot Resolver: before 5.7.0 (fixed in 5.7.0)

Published 2023-10-22. Last modified 2026-06-17.