CVE-2020-12667
HIGH7.5EPSS 1.0%Published: 5/19/2020Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-12667
Description
Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
Affected packages (1)
- Debian/knot-resolverfrom 0, < 5.1.1-0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |