Vulnerability Details : CVE-2011-4539

dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
Published 2011-12-08 11:55:02
Updated 2020-04-01 13:09:09
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Input validationDenial of service

Products affected by CVE-2011-4539

Threat overview for CVE-2011-4539

Top countries where our scanners detected CVE-2011-4539
Top open port discovered on systems with this issue 80
IPs affected by CVE-2011-4539 9
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-4539!
*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-2011-4539

EPSS FAQ
2.84%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-4539

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-2011-4539

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-4539

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