TI-2016-04702 Aliases CVE-2016-5426 GHSA-ghrw-639j-38vq

PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a…

MEDIUM 57CWE-399Published 2016-09-21 · Updated 2024-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.30631 98th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:powerdns:authoritative::::::::	up to 3.4.9	Vulnerable	PowerDNS

cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* Versions up to 3.4.9 Vulnerable ·PowerDNS

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2016-5426
2026-10-03 Alias added: GHSA-ghrw-639j-38vq

References

Patch 1

https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3

Advisory 2

Other 1

[oss-security] 20160909 PowerDNS Security Advisory 2016-01: Crafted queries can cause unexpected backend load

TI-2015-01678 The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and… CVSS 2.0HIGH 7.8
TI-2016-04703 PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . CVSS 3.0HIGH 7.5
TI-2015-04466 PowerDNS (aka pdns) Authoritative Server 3.4.4 before 3.4.7 allows remote attackers to… CVSS 2.0MEDIUM 5.0
TI-2026-25990 Incomplete domain name sanitization during CVSS 3.1CRITICAL 9.8
TI-2020-15157 An issue was discovered in PowerDNS Authoritative through 4.3.0 when… CVSS 3.1CRITICAL 9.8
TI-2015-04604 The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before… CVSS 2.0HIGH 7.8

See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences