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 updates do not need to be enabled for this issue to manifest. A client that sends certain option content would then cause kea-dhcp4 to exit unexpectedly. This issue affects Kea versions 3.0.1 through 3.0.1 and 3.1.1 through 3.1.2.

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20452-1 advisory.

    Update to 3.0.3:

    - CVE-2025-11232: invalid characters cause assert (bsc#1252863).
    - CVE-2026-3608: stack overflow via maliciously crafted message (bsc#1260380).

    Changelog:

     * A large number of bracket pairs in a JSON payload directed to      any endpoint would result in a stack overflow, due to recursive      calls when parsing the JSON. This has been fixed.
     (CVE-2026-3608)      [bsc#1260380]
     * When a hostname or FQDN received from a client is reduced to an      empty string by hostname sanitizing, kea-dhcp4 and kea-dhcp6      will now drop the option.
     (CVE-2025-11232)      [bsc#1252863]
     * A null dereference is now no longer possible when configuring      the Control Agent with a socket that lacks the mandatory      socket-name entry.
     * UNIX sockets are now created as group-writable.
     * Removed logging an error in ping check hook library if using      lease cache treshold.
     * Fixed deadlock in ping-check hooks library.
     * Fixed a data race in ping-check hooks library.

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2025:21038 advisory.

    * kea: Invalid characters cause assert (CVE-2025-11232)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2025-21038 advisory.

    - Fixes CVE-2025-11232

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2025:21038 advisory.

    * kea: Invalid characters cause assert (CVE-2025-11232)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:21038 advisory.

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-e121742c9d advisory.

    - New version 3.0.2 (rhbz#2407048)
    - Fixes CVE-2025-11232 (rhbz#2407228)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-a7cea1535d advisory.

    - New version 3.0.2 (rhbz#2407048)
    - Fixes CVE-2025-11232 (rhbz#2407229)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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 55c4e822-b4e4-11f0-8438-001b217e4ee5 advisory.

    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 NOT be empty (the default is empty).
           DDNS updates do not need to be enabled for this issue to manifest.
           A client that sends certain option content would then            cause kea-dhcp4 to exit unexpectedly.
           This addresses CVE-2025-11232 [#4142, #4155].

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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 updates do not     need to be enabled for this issue to manifest. A client that sends certain option content would then cause     kea-dhcp4 to exit unexpectedly. This issue affects Kea versions 3.0.1 through 3.0.1 and 3.1.1 through     3.1.2. (CVE-2025-11232)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
304858	openSUSE 16 Security Update : kea (openSUSE-SU-2026:20452-1)	Nessus	SuSE Local Security Checks	Local	high
277577	AlmaLinux 10 : kea (ALSA-2025:21038)	Nessus	Alma Linux Local Security Checks	Local	high
277397	Oracle Linux 10 : kea (ELSA-2025-21038)	Nessus	Oracle Linux Local Security Checks	Local	high
276547	RockyLinux 10 : kea (RLSA-2025:21038)	Nessus	Rocky Linux Local Security Checks	Local	high
274805	RHEL 10 : kea (RHSA-2025:21038)	Nessus	Red Hat Local Security Checks	Local	high
274532	Fedora 42 : kea (2025-e121742c9d)	Nessus	Fedora Local Security Checks	Local	high
272138	Fedora 43 : kea (2025-a7cea1535d)	Nessus	Fedora Local Security Checks	Local	high
272041	FreeBSD : ISC KEA -- Invalid characters cause assert (55c4e822-b4e4-11f0-8438-001b217e4ee5)	Nessus	FreeBSD Local Security Checks	Local	high
272030	Linux Distros Unpatched Vulnerability : CVE-2025-11232	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2025-11232

high

Tenable Plugins

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high

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