5

CVE-2009-4008: nlnetlabs unbound Resource Management Errors

CVSS: 5.0v2.0MediumModified
AliasesDEBIAN-CVE-2009-4008DSA-2243-1
Published 02-06-2011Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2009-4008 is a medium (CVSS 5.0) Resource Management Errors vulnerability in nlnetlabs unbound. EPSS estimates a 2.70% chance of exploitation in the next 30 days, higher than 85.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
2.70%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-06-2011
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.70%

Chance of exploitation in the next 30 days

Percentile

86%

Versus all other CVEs

30-day change

0.00 pp

From 2.70% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.70%

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

Affected systems

Debian1 product
  • unbound< 1.4.4-1 | < 1.4.6-1~lenny1
Nlnetlabs1 product
  • unbound≤ 1.4.3 | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.7.1 | 0.7.2 | 0.8 | 0.09 | 0.10 | 0.11 | 1.0.0 | 1.0.1 | 1.0.2 | 1.1.0 | 1.1.1 | 1.2.0 | 1.2.1 | 1.3.0 | 1.3.1 | 1.3.2 | 1.3.3 | 1.3.4 | 1.4.0 | 1.4.1 | 1.4.2

2 vendors · 2 products

References

4 links