Vulnerability Details : CVE-2011-4528

Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.
Published 2011-12-20 11:55:06
Updated 2025-04-11 00:51:22
Source CERT/CC
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2011-4528

Threat overview for CVE-2011-4528

Top countries where our scanners detected CVE-2011-4528
Top open port discovered on systems with this issue 53
IPs affected by CVE-2011-4528 11
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-4528!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-4528

EPSS FAQ
1.90%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-4528

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST

CWE ids for CVE-2011-4528

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-4528

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