CVE-2016-5426
PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 30.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 30.63% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- powerdns/authoritative
- Source
- secalert@redhat.com
EPSS moved from 33.8% on 21 September 2026 to 30.6% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.debian.org/security/2016/dsa-3664
- http://www.openwall.com/lists/oss-security/2016/09/09/3Release Notes
- http://www.securityfocus.com/bid/92917
- http://www.securitytracker.com/id/1036761
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/Vendor Advisory
- https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3Patch
- http://www.debian.org/security/2016/dsa-3664
- http://www.openwall.com/lists/oss-security/2016/09/09/3Release Notes
- http://www.securityfocus.com/bid/92917
- http://www.securitytracker.com/id/1036761
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/Vendor Advisory
- https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.