The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: cgroup,freezer: hold cpu_hotplug_lock     before freezer_mutex syzbot is reporting circular locking dependency between cpu_hotplug_lock and     freezer_mutex, for commit f5d39b020809 (freezer,sched: Rewrite core freezer logic) replaced atomic_inc()     in freezer_apply_state() with static_branch_inc() which holds cpu_hotplug_lock. cpu_hotplug_lock =>     cgroup_threadgroup_rwsem => freezer_mutex cgroup_file_write() { cgroup_procs_write() {
    __cgroup_procs_write() { cgroup_procs_write_start() { cgroup_attach_lock() { cpus_read_lock() {     percpu_down_read(&cpu_hotplug_lock); } percpu_down_write(&cgroup_threadgroup_rwsem); } }     cgroup_attach_task() { cgroup_migrate() { cgroup_migrate_execute() { freezer_attach() {     mutex_lock(&freezer_mutex); (...snipped...) } } } } (...snipped...) } } } freezer_mutex =>     cpu_hotplug_lock cgroup_file_write() { freezer_write() { freezer_change_state() {     mutex_lock(&freezer_mutex); freezer_apply_state() { static_branch_inc(&freezer_active) {     static_key_slow_inc() { cpus_read_lock(); static_key_slow_inc_cpuslocked(); cpus_read_unlock(); } } }     mutex_unlock(&freezer_mutex); } } } Swap locking order by moving cpus_read_lock() in freezer_apply_state()     to before mutex_lock(&freezer_mutex) in freezer_change_state(). (CVE-2023-53522)

Note that Nessus relies on the presence of the package as reported by the vendor.

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Linux Distros Unpatched Vulnerability : CVE-2023-53522

high Nessus Plugin ID 269554

Version 1.9

Version 1.8

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.9 Feb 5, 2026, 2:38 AM Plugin metadata Plugin Feed: 202602050238
Version 1.8 Jan 31, 2026, 11:07 AM Plugin metadata Plugin Feed: 202601311107
Version 1.7 Jan 30, 2026, 9:16 AM CVSS metrics ("CVSSv3 score" set to 7.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H") CVSSv3 severity (based on None, severity increased from "Medium" to "High") Detection (updated detection logic) Plugin metadata Plugin Feed: 202601300916
Version 1.6 Jan 21, 2026, 10:50 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601211050
Version 1.5 Jan 16, 2026, 10:12 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601162212
Version 1.4 Jan 13, 2026, 2:35 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601130235
Version 1.3 Oct 27, 2025, 3:15 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:U/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:U/RC:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202510271515