CVE-2006-4252
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service ...
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
Exploit likelihood
What each source reports
NVD Score used
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
CVE-2006-4252- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
CVE-2006-4252- Updated
- 2026-11-02
EUVDEUVD-2006-4240 No score
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
EUVD-2006-4240- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mx38-c6fm-chc9 No score
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service ...
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
GHSA-mx38-c6fm-chc9- Updated
- 2026-11-02
OSV No score
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
CVE-2006-4252- Updated
- 2026-11-02
OSVDEBIAN-CVE-2006-4252 No score
PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.
- Record
DEBIAN-CVE-2006-4252- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pdns-recursorDebian:12 |
before 3.1.4-1 | 3.1.4-1 |
pdns-recursorDebian:13 |
before 3.1.4-1 | 3.1.4-1 |
pdns-recursorDebian:14 |
before 3.1.4-1 | 3.1.4-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-4252 is a medium vulnerability (CVSS 5.0) in Powerdns Recursor, published November 14, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.97%, the 93rd percentile. Fixed in pdns-recursor 3.1.4-1.