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High RHSA-2025:21006 1 CVE

Red Hat Security Advisory: kea security update

Published Nov 12, 2025 · Updated Jul 12, 2026

Ecosystem: Red Hat

Fixed packages 11

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.1 kea 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-debuginfo 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-debugsource 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-devel-debuginfo 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-doc 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-hooks 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-hooks-debuginfo 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-keama 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-keama-debuginfo 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-libs 0:3.0.1-1.el10_1
Red Hat · RHEL 10 enterprise_linux:10.1 kea-libs-debuginfo 0:3.0.1-1.el10_1

Vulnerabilities 1

  • High 7.5
    CVE-2025-40779

    Kea crash upon interaction between specific client options and subnet selection

    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; broadc…

    ISC Kea

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2391373
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_21006.json
  • report
    https://access.redhat.com/security/cve/CVE-2025-40779
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-40779
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-40779
  • article
    https://kb.isc.org/docs/cve-2025-40779