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

  - net/sched: act_ife: Only operate on Ethernet frames act_ife encapsulates/decapsulates the original     Ethernet header and uses skb->dev->hard_header_len as the length of that header. That is only correct for     Ethernet devices: on a device where hard_header_len does not match the L2 header that was actually pulled     (PPP reports PPP_HDRLEN while nothing is stripped on ingress), the ingress skb_push()/skb_pull() use the     wrong length and can hit skb_under_panic when headroom is tight. IFE is Ethernet-only by design - it     builds an outer ethhdr, rewrites h_source/h_dest/h_proto, and calls eth_type_trans() on decode - so     instead of trying to make the offsets work for arbitrary link types, simply drop packets that do not carry     an Ethernet header. Checking skb->dev->type alone is not enough. We have to cater for a corner case where     mirred can redirect an skb from a non-Ethernet device to an Ethernet one, and skb->dev then says nothing     about the framing the skb actually has: an skb redirected from ppp0 reaches the target's ingress hook with     mac_len 0 and no Ethernet header at all. So at ingress also require mac_len to be ETH_HLEN. On egress     mac_len is not maintained, so the device type is all we have; a bogus redirect there yields a malformed     frame rather than an out-of-bounds push, and it would be malformed with or without IFE. That corner case     is not theoretical - redirecting from ppp0 into a veth that has an ife encode action on its ingress hook     panics without this patch: skbuff: skb_under_panic: len:98 put:14 head:ffff88800e410000     data:ffff88800e40fff5 tail:0x57 end:0x640 dev:veth3 kernel BUG at net/core/skbuff.c:214! Call Trace:
    skb_push (net/core/skbuff.c:224 net/core/skbuff.c:2657) tcf_ife_act (net/sched/act_ife.c:829     net/sched/act_ife.c:874) tc_run (net/core/dev.c:4463) netif_receive_skb (net/core/dev.c:6463     net/core/dev.c:6522) tcf_mirred_to_dev (net/sched/act_mirred.c:248 net/sched/act_mirred.c:328)     tcf_mirred_act (net/sched/act_mirred.c:489) tc_run (net/core/dev.c:4463) process_backlog     (net/core/dev.c:6728) With Ethernet framing guaranteed, use ETH_HLEN instead of hard_header_len.
    (CVE-2026-90083)

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

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Linux Distros Unpatched Vulnerability : CVE-2026-90083

high Nessus Plugin ID 347701

Version 1.2

Version 1.1

Version 1.2 Sep 18, 2026, 11:05 PM CVSS metrics ("CVSSv2 score" set to 7.8) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:A/AC:L/Au:N/C:N/I:C/A:C") CVSS metrics ("CVSSv3 score" set to 7.3) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H") Detection (updated detection logic) Plugin metadata Plugin Feed: 202609182305
Version 1.1 Sep 18, 2026, 2:17 PM New Plugin Feed: 202609181417