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CVE-2006-4252

17
FAUCET Score

CVE-2006-4252 describes a denial-of-service vulnerability in PowerDNS Recursor versions 3.1.3 and earlier. An attacker can exploit this by sending a CNAME record with a zero TTL, leading to resource exhaustion and an application crash due to an infinite loop. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and can be exploited remotely with low attack complexity, resulting in a partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.3CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
2.0_rc1CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:2.0_rc1:*:*:*:*:*:*:*
2.8CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:2.8:*:*:*:*:*:*:*
2.9.15CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:2.9.15:*:*:*:*:*:*:*
2.9.16CPE matchmatch criteria
cpe:2.3:a:powerdns:recursor:2.9.16:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.91%
Probability of exploitation in next 30 days
EPSS Percentile
92.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0591 is in the 89th percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

doc.powerdns.com / powerdns-advisory-2006-02.html
PatchVendor Advisory
lists.suse.com / archive/suse-security-announce/2006-Nov/0007.html
secunia.com / advisories/22824
PatchVendor Advisory
secunia.com / advisories/22976
exchange.xforce.ibmcloud.com / vulnerabilities/30257
securityfocus.com / bid/21037
Patch
vupen.com / english/advisories/2006/4484