CVE-2026-3608
March 25, 2026
Sending a maliciously crafted message to the kea-ctrl-agent, kea-dhcp-ddns, kea-dhcp4, or kea-dhcp6 daemons over any configured API socket or HA listener can cause the receiving daemon to exit with a stack overflow error.
This issue affects Kea versions 2.6.0 through 2.6.4 and 3.0.0 through 3.0.2.
Affected Packages
https://github.com/isc-projects/kea.git (GITHUB):
Affected version(s) >=kea-eng-20140313 <Kea-2.6.5Fix Suggestion:
Update to version Kea-2.6.5https://github.com/isc-projects/kea.git (GITHUB):
Affected version(s) >=kea-eng-20140313 <Kea-2.6.5Fix Suggestion:
Update to version Kea-2.6.5https://github.com/isc-projects/kea.git (GITHUB):
Affected version(s) >=Kea-3.0.0 <Kea-3.0.3Fix Suggestion:
Update to version Kea-3.0.3https://github.com/isc-projects/kea.git (GITHUB):
Affected version(s) >=Kea-3.0.0 <Kea-3.0.3Fix Suggestion:
Update to version Kea-3.0.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Reachable Assertion
EPSS
Base Score:
0.02
