CVE-2016-5426 describes a denial-of-service vulnerability in PowerDNS Authoritative Server versions prior to 3.4.10. An unauthenticated remote attacker can exploit this by sending a specially crafted, long query name (qname), leading to high CPU consumption on the backend. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with no user interaction, potentially causing significant service disruption. While its EPSS score indicates a higher than average likelihood of exploitation, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.4.9CPE matchmatch criteria | cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.