VULNERABILITY INTELLIGENCE
CVE-2009-4008
CVSS score5 MEDIUM
EPSS probability2.70%
CISA KEVNot currently listed
Published2011-06-02
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
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.