The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:40425 advisory.

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

    Security Fix(es):

    * kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)

    * kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock     (CVE-2026-53166)

    * kernel: xfs: resample the data fork mapping after cycling ILOCK

    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 update (Important) (RHSA-2026:40425)

high Nessus Plugin ID 327254

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.4 Jul 30, 2026, 11:45 AM CVSSv3 score source (changed from "CVE-2026-43499" to none) Plugin Feed: 202607301145
Version 1.3 Jul 27, 2026, 10:22 AM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202607271022
Version 1.2 Jul 23, 2026, 3:57 AM CVE (set "CVE" coverage to "CVE-2026-43499,CVE-2026-64600") CVSSv2 score source (changed from "CVE-2026-43499" to "CVE-2026-64600") CVSSv3 score source (set to "CVE-2026-43499") Detection (updated detection logic) Reference Plugin Feed: 202607230357
Version 1.1 Jul 16, 2026, 9:04 PM New Plugin Feed: 202607162104