High severity7.5OSV Advisory· Published Sep 21, 2016· Updated Jun 17, 2026

CVE-2016-5427

Description

PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

PowerDNS/PdnsOSV2 versions
auth-3.1-rc1, auth-3.1-rc2, auth-3.1-rc3, …+ 1 more
- (no CPE)range: auth-3.1-rc1, auth-3.1-rc2, auth-3.1-rc3, …
- (no CPE)range: <3.4.10
PowerDNS/PowerDNS Authoritative Serverllm-fuzzy
Range: <3.4.10

Patches

Vulnerability mechanics

References

doc.powerdns.com/md/security/powerdns-advisory-2016-01/nvdVendor Advisory
www.openwall.com/lists/oss-security/2016/09/09/3nvdRelease Notes
www.debian.org/security/2016/dsa-3664nvd
www.securityfocus.com/bid/92917nvd
www.securitytracker.com/id/1036761nvd
github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3nvd

News mentions

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cvss	0.488
epss	0.050
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000