PT-2026-27643 · Isc · Kea

Published 2026-03-25 · Updated 2026-03-25 · CVE-2026-3608

Mitre

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-3608

Affected Products

Kea

References · 4

• https://kb.isc.org/docs/cve-2026-3608 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3608 · Security Note
• https://downloads.isc.org/isc/kea/2.6.5 · Patch
• https://downloads.isc.org/isc/kea/3.0.3 · Patch