CVE-2026-71401

An integer underflow in the wicked DHCPv4 packet capture code (function ni_capture_inspect_udp_header() in src/capture.c) allows an unauthenticated attacker on an adjacent network to trigger an out-of-bounds read past the receive buffer in the wickedd-dhcp4 daemon. The IP total length field is no...

CVE-2026-71401 wicked: integer underflow of the UDP length in ni_capture_inspect_udp_header() leads to an out-of-bounds read

An integer underflow was found in the DHCPv4 packet capture code of wicked. nicaptureinspectudpheader in src/capture.c does not verify that the IP total length field iplen is at least as large as the IP header length ihl before subtracting the header length. An unauthenticated attacker on the sam...

CVE-2026-71401: Integer Underflow (Wrap or Wraparound)

An integer underflow was found in the DHCPv4 packet capture code of wicked. nicaptureinspectudpheader in src/capture.c does not verify that the IP total length field iplen is at least as large as the IP header length ihl before subtracting the header length. An unauthenticated attacker on the sam...

CVE-2026-71402: Out-of-bounds Read

An out-of-bounds read was found in the DHCPv4 packet capture code of wicked. nicaptureinspectudpheader in src/capture.c reports the IP total length as the payload length instead of the length of the remaining UDP payload. Consequently, the DHCP option walker in the DHCPv4 client wickedd-dhcp4 rea...

PT-2026-82548

Name of the Vulnerable Software and Affected Versions wicked versions prior to 0.6.81 Description An out-of-bounds read exists in the DHCPv4 packet capture code. The function ni capture inspect udp header in src/capture.c incorrectly reports the IP total length as the payload length instead of th...

CVE-2026-3608: Reachable Assertion

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...

CVE-2020-7217

An nidhcp4fsmprocessdhcp4packet memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets with a different client-id...

CVE-2020-7216

An nidhcp4parseresponse memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets without a message type option...

SUSE CVE-2025-11232

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

EUVD-2025-36693

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

CVE-2025-11232

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

CVE-2025-11232

Kea DHCP (ISC) vulnerability CVE-2025-11232 affects Kea 3.0.1 and 3.1.1–3.1.2. The root cause is an assertion triggered by three specific default config values: hostname-char-set uses the default [^A-Za-z0-9.-], hostname-char-replacement is empty, and ddns-qualifying-suffix is non-empty. When a c...

CVE-2025-11232 Invalid characters cause assert

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

CVE-2025-11232 Invalid characters cause assert

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

CVE-2025-11232: Use of Out-of-range Pointer Offset

To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must NOT be empty the default is empty. DDNS...

ISC KEA -- Invalid characters cause assert

Internet Systems Consortium, Inc. reports: To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "^A-Za-z0-9.-"; "hostname-char-replacement" must be empty the default; and "ddns-qualifying-suffix" must N...

EUVD-2020-28348

Malware in sbrugna...

EUVD-2020-28349

Malware in sbrugna...

FreeBSD : ISC KEA -- kea-dhcp4 aborts if client sends a broadcast request with particular options (f727fe60-8389-11f0-8438-001b217e4ee5)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f727fe60-8389-11f0-8438-001b217e4ee5 advisory. Internet Systems Consortium, Inc. reports: We corrected an issue in kea-dhcp4 that caused the server to...

SUSE CVE-2025-40779

If a DHCPv4 client sends a request with some specific options, and Kea fails to find an appropriate subnet for the client, the kea-dhcp4 process will abort with an assertion failure. This happens only if the client request is unicast directly to Kea; broadcast messages do not cause the problem...