4.3

CVE-2011-1922: nlnetlabs unbound Resource Management Errors

CVSS: 4.3v2.0MediumModified
AliasesDEBIAN-CVE-2011-1922
Published 31-05-2011Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2011-1922 is a medium (CVSS 4.3) Resource Management Errors vulnerability in nlnetlabs unbound. EPSS estimates a 7.08% chance of exploitation in the next 30 days, higher than 94.1% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
7.08%
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. 31-05-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

7.08%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 7.08% on 19-09-2026

19-09-202619-10-2026
EPSS score
7.08%

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< 1.4.10-1
Nlnetlabs1 product
  • unbound1.0.0 | 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 | 1.4.3 | 1.4.4 | 1.4.5 | 1.4.6 | 1.4.7 | 1.4.8 | 1.4.9

2 vendors · 2 products

References

8 links