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

  - net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM quite a lot these days,     and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop() We have many more similar issues to fix. WARNING:
    CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260 Modules linked in: CPU: 1 PID: 1593 Comm:
    kworker/1:3 Not tainted 6.1.40-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute     Engine, BIOS Google 07/26/2023 Workqueue: events_power_efficient gc_worker RIP:
    0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782 Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03     42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd <0f> 0b b3 01 eb 34 e8 d0 33 1b     fd 45 31 f6 49 83 c6 38 4c 89 f0 48 RSP: 0018:ffffc90000388530 EFLAGS: 00010246 RAX: ffffffff846d9b55 RBX:
    0000000000000011 RCX: ffff88814f884980 RDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011     RBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65 R10: 0000000000000002 R11:
    ffff88814f884980 R12: dffffc0000000000 R13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000     FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000     CR0: 0000000080050033 CR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0 DR0:
    0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0     DR7: 0000000000000400 Call Trace: <IRQ> [<ffffffff8507734f>] ip6_finish_output2+0x33f/0x1ae0     net/ipv6/ip6_output.c:83 [<ffffffff85062766>] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline]     [<ffffffff85062766>] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211 [<ffffffff85061f8c>]     NF_HOOK_COND include/linux/netfilter.h:298 [inline] [<ffffffff85061f8c>] ip6_output+0x2bc/0x3d0     net/ipv6/ip6_output.c:232 [<ffffffff852071cf>] dst_output include/net/dst.h:444 [inline]     [<ffffffff852071cf>] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161 [<ffffffff83618fb4>]     ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline] [<ffffffff83618fb4>]     ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:529 [inline] [<ffffffff83618fb4>]     ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:602 [inline] [<ffffffff83618fb4>]     ipvlan_queue_xmit+0x1174/0x1be0 drivers/net/ipvlan/ipvlan_core.c:677 [<ffffffff8361ddd9>]     ipvlan_start_xmit+0x49/0x100 drivers/net/ipvlan/ipvlan_main.c:229 [<ffffffff84763fc0>] netdev_start_xmit     include/linux/netdevice.h:4925 [inline] [<ffffffff84763fc0>] xmit_one net/core/dev.c:3644 [inline]     [<ffffffff84763fc0>] dev_hard_start_xmit+0x320/0x980 net/core/dev.c:3660 [<ffffffff8494c650>]     sch_direct_xmit+0x2a0/0x9c0 net/sched/sch_generic.c:342 [<ffffffff8494d883>] qdisc_restart     net/sched/sch_generic.c:407 [inline] [<ffffffff8494d883>] __qdisc_run+0xb13/0x1e70     net/sched/sch_generic.c:415 [<ffffffff8478c426>] qdisc_run+0xd6/0x260 include/net/pkt_sched.h:125     [<ffffffff84796eac>] net_tx_action+0x7ac/0x940 net/core/dev.c:5247 [<ffffffff858002bd>]
    __do_softirq+0x2bd/0x9bd kernel/softirq.c:599 [<ffffffff814c3fe8>] invoke_softirq kernel/softirq.c:430     [inline] [<ffffffff814c3fe8>] __irq_exit_rcu+0xc8/0x170 kernel/softirq.c:683 [<ffffffff814c3f09>]     irq_exit_rcu+0x9/0x20 kernel/softirq.c:695 (CVE-2023-53831)

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

Detections

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Linux Distros Unpatched Vulnerability : CVE-2023-53831

high Nessus Plugin ID 278060

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.6 Jan 21, 2026, 5:00 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601211700
Version 1.5 Jan 15, 2026, 2:04 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601151404
Version 1.4 Jan 10, 2026, 7:58 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601101958
Version 1.3 Dec 15, 2025, 9:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512152139
Version 1.2 Dec 12, 2025, 12:11 AM 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 7.1) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H") CVSSv3 severity (based on None, severity increased from "Medium" to "High") Detection (updated detection logic) Plugin metadata Plugin Feed: 202512120011
Version 1.1 Dec 11, 2025, 12:59 PM New Plugin Feed: 202512111259