CVE-2016-7068

highpriority · track · 33EPSS 0.073 · 94 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

7.29% (94th) EPSS

CVSS 7.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · secalert@redhat.com USexploitability 3.9 · impact 1.4

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimaryCWE-20US

affected products (9)

Products and version ranges known to be affected.

Open-Xchange pdns≤ 3.4.11enisa_euvdEU
Open-Xchange pdns≤ 3.7.4enisa_euvdEU
Open-Xchange pdns≤ 4.0.2enisa_euvdEU
Open-Xchange pdns≤ 4.0.4enisa_euvdEU
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
powerdns authoritative< 3.4.11nvdUScpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*
powerdns authoritative4.0.0 → 4.0.2nvdUScpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*
powerdns recursor< 3.7.4nvdUScpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
powerdns recursor4.0.0 → 4.0.4nvdUScpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-09-11modified 2026-06-17

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+9613 more

references (12)

External citations — patches, advisories, analysis.

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