CVE-2016-7073

mediumpriority · track · 24EPSS 0.012 · 69 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.23% (69th) EPSS

CVSS 4.3 · medium

Is it mine?

8 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 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.

cvss

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

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

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

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

v3.05.4mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (8)

Products and version ranges known to be affected.

Open-Xchange pdns≤ 4.0.2enisa_euvdEU
Open-Xchange pdns≤ 4.0.4enisa_euvdEU
Open-Xchange pdns≤ 3.4.11enisa_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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+25188 more

references (9)

External citations — patches, advisories, analysis.

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