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

  - xfrm: interface: fix use-after-free after changing collect_md xfrm interface collect_md property on xfrm     interfaces can only be set on device creation, thus xfrmi_changelink() should fail when called on such     interfaces. The check to enforce this was done only in the case where the xi was returned from     xfrmi_locate() which doesn't look for the collect_md interface, and thus the validation was never reached.
    Calling changelink would thus errornously place the special interface xi in the xfrmi_net->xfrmi hash, but     since it also exists in the xfrmi_net->collect_md_xfrmi pointer it would lead to a double free when the     net namespace was taken down [1]. Change the check to use the xi from netdev_priv which is available     earlier in the function to prevent changes in xfrm collect_md interfaces. [1] resulting oops: [ 8.516540]     kernel BUG at net/core/dev.c:12029! [ 8.516552] Oops: invalid opcode: 0000 [#1] SMP NOPTI [ 8.516559] CPU:
    0 UID: 0 PID: 12 Comm: kworker/u80:0 Not tainted 6.15.0-virtme #5 PREEMPT(voluntary) [ 8.516565] Hardware     name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 8.516569]     Workqueue: netns cleanup_net [ 8.516579] RIP: 0010:unregister_netdevice_many_notify+0x101/0xab0 [     8.516590] Code: 90 0f 0b 90 48 8b b0 78 01 00 00 48 8b 90 80 01 00 00 48 89 56 08 48 89 32 4c 89 80 78 01     00 00 48 89 b8 80 01 00 00 eb ac 90 <0f> 0b 48 8b 45 00 4c 8d a0 88 fe ff ff 48 39 c5 74 5c 41 80 bc 24 [     8.516593] RSP: 0018:ffffa93b8006bd30 EFLAGS: 00010206 [ 8.516598] RAX: ffff98fe4226e000 RBX:
    ffffa93b8006bd58 RCX: ffffa93b8006bc60 [ 8.516601] RDX: 0000000000000004 RSI: 0000000000000000 RDI:
    dead000000000122 [ 8.516603] RBP: ffffa93b8006bdd8 R08: dead000000000100 R09: ffff98fe4133c100 [ 8.516605]     R10: 0000000000000000 R11: 00000000000003d2 R12: ffffa93b8006be00 [ 8.516608] R13: ffffffff96c1a510 R14:
    ffffffff96c1a510 R15: ffffa93b8006be00 [ 8.516615] FS: 0000000000000000(0000) GS:ffff98fee73b7000(0000)     knlGS:0000000000000000 [ 8.516619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.516622] CR2:
    00007fcd2abd0700 CR3: 000000003aa40000 CR4: 0000000000752ef0 [ 8.516625] PKRU: 55555554 [ 8.516627] Call     Trace: [ 8.516632] <TASK> [ 8.516635] ? rtnl_is_locked+0x15/0x20 [ 8.516641] ?     unregister_netdevice_queue+0x29/0xf0 [ 8.516650] ops_undo_list+0x1f2/0x220 [ 8.516659]     cleanup_net+0x1ad/0x2e0 [ 8.516664] process_one_work+0x160/0x380 [ 8.516673] worker_thread+0x2aa/0x3c0 [     8.516679] ? __pfx_worker_thread+0x10/0x10 [ 8.516686] kthread+0xfb/0x200 [ 8.516690] ?
    __pfx_kthread+0x10/0x10 [ 8.516693] ? __pfx_kthread+0x10/0x10 [ 8.516697] ret_from_fork+0x82/0xf0 [     8.516705] ? __pfx_kthread+0x10/0x10 [ 8.516709] ret_from_fork_asm+0x1a/0x30 [ 8.516718] </TASK>     (CVE-2025-38500)

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

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Linux Distros Unpatched Vulnerability : CVE-2025-38500

high Nessus Plugin ID 260032

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Sep 6, 2025, 7:55 PM 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") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202509061955
Version 1.2 Sep 4, 2025, 5:30 PM CVSS metrics ("CVSSv2 score" set to 6.6) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:C") CVSS metrics ("CVSSv3 score" set to 7.1) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202509041730
Version 1.1 Aug 31, 2025, 7:32 PM New Plugin Feed: 202508311932