Threat Intelligence Database

A reachable assertion vulnerability (CWE-617) in ISC Kea DHCP daemons (kea-ctrl-agent, kea-dhcp-ddns, kea-dhcp4, kea-dhcp6) allows a denial of service via a stack overflow triggered by a maliciously crafted message sent over any configured API socket or HA listener. This affects Kea versions 2.6.0 through 2.6.4 and 3.0.0 through 3.0.2. Red Hat has issued security advisories and updates to address this issue.

DHCP implementation from Internet Systems Consortium, Inc. that features fully functional DHCPv4, DHCPv6 and Dynamic DNS servers. Both DHCP servers fully support server discovery, address assignment, renewal, rebinding and release. The DHCPv6 server supports prefix delegation. Both servers support DNS Update mechanism, using stand-alone DDNS daemon. Security Fix(es): * kea: Invalid characters cause assert (CVE-2025-11232) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat has issued a security advisory for the kea DHCP implementation addressing three vulnerabilities: a local privilege escalation via loading a malicious hook library (CVE-2025-32801), insecure file path handling allowing local attacks (CVE-2025-32802), and insecure file permissions leading to confidential information leakage (CVE-2025-32803). These issues affect Red Hat Enterprise Linux 10 and related variants. A security update is available to remediate these vulnerabilities.