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

  - vsock: fix lock inversion in vsock_assign_transport() Syzbot reported a potential lock inversion deadlock     between vsock_register_mutex and sk_lock-AF_VSOCK when vsock_linger() is called. The issue was introduced     by commit 687aa0c5581b (vsock: Fix transport_* TOCTOU) which added vsock_register_mutex locking in     vsock_assign_transport() around the transport->release() call, that can call vsock_linger().
    vsock_assign_transport() can be called with sk_lock held. vsock_linger() calls sk_wait_event() that     temporarily releases and re-acquires sk_lock. During this window, if another thread hold     vsock_register_mutex while trying to acquire sk_lock, a circular dependency is created. Fix this by     releasing vsock_register_mutex before calling transport->release() and vsock_deassign_transport(). This is     safe because we don't need to hold vsock_register_mutex while releasing the old transport, and we ensure     the new transport won't disappear by obtaining a module reference first via try_module_get().
    (CVE-2025-40231)

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

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Linux Distros Unpatched Vulnerability : CVE-2025-40231

medium Nessus Plugin ID 277479

Version 1.8

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.8 Jan 15, 2026, 2:04 PM Detection (updated detection logic) Plugin Feed: 202601151404
Version 1.7 Jan 13, 2026, 2:35 AM Detection (updated detection logic) Plugin Feed: 202601130235
Version 1.6 Dec 15, 2025, 9:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512152139
Version 1.5 Dec 13, 2025, 1:08 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512130108
Version 1.4 Dec 11, 2025, 12:59 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512111259
Version 1.3 Dec 9, 2025, 2:31 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512090231
Version 1.2 Dec 5, 2025, 9:00 PM CVSS metrics ("CVSSv2 score" set to 4.9) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C") CVSS metrics ("CVSSv3 score" set to 5.5) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H") CVSSv2 severity (based on CVE-2025-40231, severity decreased from "High" to "Medium") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202512052100
Version 1.1 Dec 4, 2025, 10:27 PM New Plugin Feed: 202512042227