Servers and applications
CVE-2022-3204
A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for a record that relies on those unresponsive nameservers. The attack can cause a resolver to spend a…
- Severity
- High 7.5
- Published
- 26 Sept 2022
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
UnboundServers and applications · cpe:a:nlnetlabs:unbound |
|