MEDIUM
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
Published Sep 26, 2016
6.8
MEDIUMCVSS 3.0
EPSS 3.82%
Description
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.8 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.1 HIGH NVD
AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.82% 0.03824
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03824
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.82% (0.03824) | 89.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.84% (0.03838) | 88.71th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.01% (0.00014) | 1.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.44% (0.00441) | 75.69th | v3 (v2023.03.01) |
| Mar 8, 2024 | 0.65% (0.00647) | 78.81th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.46% (0.00456) | 74.53th | v3 (v2023.03.01) |
| Nov 19, 2023 | 0.46% (0.00456) | 72.48th | v3 (v2023.03.01) |
| Aug 30, 2023 | 0.40% (0.00404) | 70.41th | v3 (v2023.03.01) |
| Jul 18, 2023 | 0.38% (0.00379) | 69.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.37% (0.00368) | 68.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
Weaknesses (1)
References (11)
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://www.debian.org/security/2016/dsa-3664 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/07/06/3 mailing-listx_refsource_MLISTMailing List
- http://www.securityfocus.com/bid/91678 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036242 vdb-entryx_refsource_SECTRACK
- https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401 x_refsource_CONFIRMRelease Notes
- https://github.com/PowerDNS/pdns/issues/4128 x_refsource_CONFIRMIssue Tracking
- https://github.com/PowerDNS/pdns/issues/4133 x_refsource_CONFIRMIssue Tracking
- https://github.com/PowerDNS/pdns/pull/4134 x_refsource_CONFIRMIssue Tracking
- https://github.com/sischkg/xfer-limit/blob/master/README.md x_refsource_MISCPatch
- https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| http://www.debian.org/security/2016/dsa-3664 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2016/07/06/3 | mailing-listx_refsource_MLISTMailing List | |
| http://www.securityfocus.com/bid/91678 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1036242 | vdb-entryx_refsource_SECTRACK | |
| https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401 | x_refsource_CONFIRMRelease Notes | |
| https://github.com/PowerDNS/pdns/issues/4128 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/PowerDNS/pdns/issues/4133 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/PowerDNS/pdns/pull/4134 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/sischkg/xfer-limit/blob/master/README.md | x_refsource_MISCPatch | |
| https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Sep 26, 2016
Updated Aug 6, 2024
Reserved Jul 6, 2016
Link CVE-2016-6172
CISA Vulnrichment
Updated n/a