The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3110 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129)

    * kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init (CVE-2025-38248)

    * kernel: smc: Fix use-after-free in __pnet_find_base_ndev() (CVE-2025-40064)

    * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CVE-2025-68800)

    * kernel: Linux kernel: Use-after-free in teql queueing discipline can lead to privilege escalation     (CVE-2026-23074)

    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 these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 8 : kernel-rt (RHSA-2026:3110)

high Nessus Plugin ID 299816

Version 1.2

Version 1.1

Version 1.2 Mar 19, 2026, 12:10 PM CVSSv2 score source (changed from "CVE-2025-38248" to "CVE-2026-23074") Plugin Feed: 202603191210
Version 1.1 Feb 24, 2026, 6:12 AM New Plugin Feed: 202602240612