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RHEL 8 : kernel-rt (RHSA-2026:67469)
medium Nessus Plugin ID 345818
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Synopsis
The remote Red Hat host is missing one or more security updates for kernel-rt.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67469 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: EDAC/bluefield: Fix potential integer overflow (CVE-2024-53161)
* kernel: wifi: mac80211: Discard Beacon frames to non-broadcast address (CVE-2025-71127)
* kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)
* kernel: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove (CVE-2026-52947)
* kernel: wifi: nl80211: reject oversized EMA RNR lists (CVE-2026-53182)
* kernel: blk-cgroup: fix UAF in __blkcg_rstat_flush() (CVE-2026-63802)
* kernel: scsi: scsi_transport_fc: Widen FPIN pname walker counter to u32 (CVE-2026-63889)
* kernel: wifi: mac80211: capture fast-RX rate before mesh reuses skb->cb (CVE-2026-64117)
* kernel: Linux kernel: ath9k Wi-Fi driver use-after-free vulnerability leading to system crash (CVE-2026-68363)
* kernel: net: qrtr: restrict socket creation to the initial network namespace (CVE-2026-68294)
* kernel: dm-verity: fix buffer overflow in FEC calculation (CVE-2026-72098)
* kernel: scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556)
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.
Solution
Update the RHEL kernel-rt package based on the guidance in RHSA-2026:67469.See Also
https://access.redhat.com/errata/RHSA-2026:67469
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2333977
https://bugzilla.redhat.com/show_bug.cgi?id=2429587
https://bugzilla.redhat.com/show_bug.cgi?id=2467065
https://bugzilla.redhat.com/show_bug.cgi?id=2492432
https://bugzilla.redhat.com/show_bug.cgi?id=2492722
https://bugzilla.redhat.com/show_bug.cgi?id=2502251
https://bugzilla.redhat.com/show_bug.cgi?id=2502320
https://bugzilla.redhat.com/show_bug.cgi?id=2502477
https://bugzilla.redhat.com/show_bug.cgi?id=2513286
https://bugzilla.redhat.com/show_bug.cgi?id=2513353
https://bugzilla.redhat.com/show_bug.cgi?id=2516501
Plugin Details
Severity: Medium
ID: 345818
File Name: redhat-RHSA-2026-67469.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/15/2026
Updated: 9/15/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.9
Percentile: 96.61
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C
CVSS Score Source: CVE-2025-71127
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 4.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_eus:8.10, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 9/15/2026
Vulnerability Publication Date: 12/24/2024
Reference Information
CVE: CVE-2024-53161, CVE-2025-71127, CVE-2026-43133, CVE-2026-52947, CVE-2026-53182, CVE-2026-63802, CVE-2026-63889, CVE-2026-64117, CVE-2026-68294, CVE-2026-68363, CVE-2026-72098, CVE-2026-74556