Uncontrolled resource consumption in PowerDNS pdns
Priority MEDIUM 42CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
PowerDNS Authoritative Server 3.3.0 up to 4.1.4 excluding 4.1.5 and 4.0.6, and PowerDNS Recursor 3.2 up to 4.1.4 excluding 4.1.5 and 4.0.9, are vulnerable to a memory leak while parsing malformed records that can lead to remote denial of service.
Why it matters now
EPSS 0.06041 93rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| PowerDNS | pdns | 3.3.0 to 4.1.4, excluding 4.1.5 and 4.0.6 | — | No fix listed | CNA |
| PowerDNS | pdns-recursor | 3.2 to 4.1.4, excluding 4.1.5 and 4.0.9 | — | No fix listed | CNA |
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2018-10851
- 2026-10-03 Alias added: GHSA-v52v-2q9p-gp4x
References
More PowerDNS Authoritative vulnerabilities
- TI-2015-01678 The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and… CVSS 2.0HIGH 7.8
- TI-2016-04703 PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . CVSS 3.0HIGH 7.5
- TI-2015-04466 PowerDNS (aka pdns) Authoritative Server 3.4.4 before 3.4.7 allows remote attackers to… CVSS 2.0MEDIUM 5.0
- TI-2016-04702 PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a… CVSS 3.0HIGH 7.5
- TI-2026-25990 Incomplete domain name sanitization during CVSS 3.1CRITICAL 9.8
- TI-2020-15157 An issue was discovered in PowerDNS Authoritative through 4.3.0 when… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-10851 · CVE Program
- CVE-2018-10851 · NVD
- FIRST EPSS
- GHSA-v52v-2q9p-gp4x · GitHub Advisory Database · CC BY 4.0
- CVE-2018-10851 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences