CVE-2016-6172

highpriority · track · 28EPSS 0.038 · 90 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.82% (90th) EPSS

CVSS 7.1 · high

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.2–7.1

v2.07.1highAV:N/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 6.9

v3.06.8mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.2 · impact 4

v3.06.2mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimary

affected products (12)

Products and version ranges known to be affected.

Dell Avamarall versionscert_bundDEcpe:/a:dell:avamar:-
Dell NetWorker virtualall versionscert_bundDEcpe:/a:dell:networker:virtual
F5 BIG-IPall versionscert_bundDEcpe:/a:f5:big-ip:-
F5 Enterprise Managerall versionscert_bundDEcpe:/a:f5:enterprise_manager:-
Internet Systems Consortium BIND 9all versionscert_bundDEcpe:/a:isc:bind:9.0
Open Source PowerDNS 4.1.xall versionscert_bundDEcpe:/a:powerdns:authoritative:4.1.x
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a n/a≤ n/aenisa_euvdEU
opensuse leap= 42.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
opensuse opensuse= 13.2nvdUScpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*
powerdns authoritative server≤ 4.0.0nvdUScpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-2193DNS Server: Schwachstelle ermöglicht Denial of ServiceDeutsch2016-07-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PowerDNS und Internet Systems Consortium BIND ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2016-09-26modified 2026-06-17

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+9608 more

references (30)

External citations — patches, advisories, analysis.

scry

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