CVE-2016-7072
mediumpriority · track · 32EPSS 0.061 · 93 %ileEUUSEPSS · scored 2026-10-27
An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072cnnvd
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/cnnvd
- https://www.debian.org/security/2017/dsa-3764cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072enisa_euvd
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/enisa_euvd
- https://www.debian.org/security/2017/dsa-3764enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072Issue TrackingThird Party Advisorynvd
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/Vendor Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan