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Fencer Vulns
high 7.5

CVE-2025-11232 json

Invalid characters cause assert

published 2025-10-29 12 mo ago modified 2026-10-08 31 d ago also EUVD-2025-36693

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

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.

Patch / fix

  • ISC Kea 2.6.0, 2.7.0, 3.0.0, 3.1.0
  • kea RHEL 10.1 3.0.1-2.el10_1
  • kea-libs RHEL 10.1 3.0.1-2.el10_1
  • kea-hooks RHEL 10.1 3.0.1-2.el10_1
  • kea-keama RHEL 10.1 3.0.1-2.el10_1

red hat advisories RHSA-2025:21038

  • kea SLES for SAP applications 16.0, SLES 16.0 3.0.3-160000.1.1

suse advisories SUSE-SU-2026:20989-1

  • kea openSUSE Leap 16.0 3.0.3-160000.1.1
  • kea openSUSE Tumbleweed 3.0.2-1.1

opensuse advisories openSUSE-SU-2026:20452-1openSUSE-SU-2025:15677-1

  • kea Rocky Linux 10 3.0.1-2.el10_1

rocky linux advisories RLSA-2025:21038

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-11232 updated cvss 7.5

kea: Invalid characters cause assert

  • Red Hat Enterprise Linux AppStream (v. 10) kea-hooks 3.0.1-2.el10_1 Red Hat Enterprise Linux BaseOS (v. 10) kea 3.0.1-2.el10_1, kea-libs 3.0.1-2.el10_1 Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kea-keama 3.0.1-2.el10_1
    fixed: vendor fix RHSA-2025:21038

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
12 mo ago

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • ISC Kea

Classification

Weakness
  • CWE-823 Use of Out-of-range Pointer Offset

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.