The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:53329 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: cxl/port: Fix use after free of parent_port in cxl_detach_ep() (CVE-2026-31530)

    * kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation     (CVE-2025-54518)

    * kernel: mm/slab: do not limit zeroing to orig_size when only red zoning is enabled (CVE-2026-64368)

    * kernel: net: openvswitch: reject oversized nested action attrs (CVE-2026-64531)

    Bug Fix(es) and Enhancement(s):

    * Kernel oops after increasing max number of mac addresses of a mlx5 VF [rhel-9.8.z] (JIRA:RHEL-213036)

    * RHEL9.4 - s390/pkey: Check length in pkey_pckmo handler implementation [rhel-9.8.z] (JIRA:RHEL-215578)

    * RHEL9.4 - s390/pkey: Check length in PKEY_VERIFYPROTK ioctl [rhel-9.8.z] (JIRA:RHEL-215580)

    * cifs: periodic IO errors when rename races with lease break (JIRA:RHEL-192999)

    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 9 : kernel (RHSA-2026:53329)

high Nessus Plugin ID 334487

Version 1.2

Version 1.1

Version 1.2 Oct 23, 2026, 11:36 AM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:F/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:F/RL:O/RC:C") Exploit attributes ("Exploit framework core" set to "True") Plugin Feed: 202610231136
Version 1.1 Aug 11, 2026, 3:40 PM New Plugin Feed: 202608111540