CVE-2016-6172

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.3% of scored records. A rank, not a probability.

NVD base score

6.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-09-26 16:00Z9 YR AGO

Last updated

2024-08-06 01:22Z2 YR AGO

Reserved

2016-07-06

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.1

Document digest

d06e91b6cd9109969f50b9c4c8870cb1e618d1a097506870ed7e4c98b5b0b6a0

• doc.powerdns.comhttps://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401x_refsource_CONFIRM
• www.debian.orgDSA-3664http://www.debian.org/security/2016/dsa-3664vendor-advisoryx_refsource_DEBIAN
• www.securitytracker.com1036242http://www.securitytracker.com/id/1036242vdb-entryx_refsource_SECTRACK
• www.openwall.com[oss-security] 20160706 Malicious primary DNS servers can crash secondarieshttp://www.openwall.com/lists/oss-security/2016/07/06/3mailing-listx_refsource_MLIST
• github.comhttps://github.com/PowerDNS/pdns/issues/4128x_refsource_CONFIRM
• github.comhttps://github.com/PowerDNS/pdns/issues/4133x_refsource_CONFIRM
• www.securityfocus.com91678http://www.securityfocus.com/bid/91678vdb-entryx_refsource_BID
• lists.dns-oarc.net[dns-operations] 20160704 DNS activities in Japanhttps://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.htmlmailing-listx_refsource_MLIST
• github.comhttps://github.com/PowerDNS/pdns/pull/4134x_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2016:2116http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.htmlvendor-advisoryx_refsource_SUSE
• github.comhttps://github.com/sischkg/xfer-limit/blob/master/README.mdx_refsource_MISC