CVE-2026-66374 | nic Knot Resolver up to 6.4.0 DNS-over-QUIC buffer overflow

July 25, 2026 Yanac

A vulnerability was found in nic Knot Resolver up to 6.4.0. It has been declared as critical. Affected by this issue is some unknown functionality of the component DNS-over-QUIC. Executing a manipulation can lead to buffer overflow.

This vulnerability is tracked as CVE-2026-66374. The attack can be launched remotely. No exploit exists.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More