7.5

CVE-2006-4251: powerdns recursor

CVSS: 7.5v2.0HighModified
AliasesDEBIAN-CVE-2006-4251DSA-1211DSA-1211-1
Published 14-11-2006Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2006-4251 is a high (CVSS 7.5) vulnerability in powerdns recursor. EPSS estimates a 8.79% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
8.79%
0%100%
Low · +0.29 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-11-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

Buffer overflow in PowerDNS Recursor 3.1.3 and earlier might allow remote attackers to execute arbitrary code via a malformed TCP DNS query that prevents Recursor from properly calculating the TCP DNS query length.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

8.79%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

+0.29 pp

From 8.50% on 21-09-2026

21-09-202621-10-2026
EPSS score
8.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian2 products
  • pdns< 2.9.17-13sarge3 | < 2.9.20-4
  • pdns-recursor< 3.1.4-1
Powerdns1 product
  • recursor≤ 3.1.3 | 2.0_rc1 | 2.8 | 2.9.15 | 2.9.16 | 2.9.17 | 2.9.18 | 3.0 | 3.0.1 | 3.1 | 3.1.1 | 3.1.2

2 vendors · 3 products

References

10 links