CVE-2018-14626: powerdns authoritative Uncontrolled Resource Consumption
Vulnerability summary
CVE-2018-14626 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in powerdns authoritative. EPSS estimates a 2.72% chance of exploitation in the next 30 days, higher than 86% of scored vulnerabilities.
Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 10Timeline
- 29-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
PowerDNS Authoritative Server 4.1.0 up to 4.1.4 inclusive and PowerDNS Recursor 4.0.0 up to 4.1.4 inclusive are vulnerable to a packet cache pollution via crafted query that can lead to denial of service.
CVSS metrics
6 scores · 5 sources · 2 versions- CVE.orgCNA5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.72%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.72% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine2 products
- pdns< 4.1.5-r0 | < 4.0.6-r0
- pdns-recursor< 4.1.7-r0 | < 4.0.9-r0 | < 4.1.8-r0
Debian2 products
- pdns< 4.1.5-1
- pdns-recursor< 4.1.7-1
Powerdns2 products
- authoritative≥ 4.1.0, ≤ 4.1.4
- recursor≥ 4.0.0, ≤ 4.1.4
The powerdns project2 products
- pdns4.1.0 to 4.1.4 inclusive
- pdns-recursor4.0.0 to 4.1.4 inclusive
Ubuntu2 products
- pdns< 4.1.1-1ubuntu0.1~esm1
- pdns-recursor< 4.0.0~alpha2-2ubuntu0.1+esm1 | < 4.1.1-2ubuntu0.1~esm1
5 vendors · 10 products
References
10 links- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14626X Refsource CONFIRMIssue TrackingThird Party Advisory
- doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-06.htmlX Refsource CONFIRMVendor AdvisoryREPORT
- doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2018-05.htmlX Refsource CONFIRMVendor AdvisoryREPORT