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

  - net: thunderbolt: Mark the connection down when bringing it up fails Every failure path in     tbnet_connected_work() undoes its own work and returns without clearing login_sent, so the connection     still looks established. The next tbnet_tear_down() therefore takes its main branch and repeats a teardown     that already happened: it stops rings that are already stopped, which is a dev_WARN() and fatal under     panic_on_warn, and it releases net->remote_transmit_path even on the HopID mismatch path, where this     connection never owned that id, silently freeing one that someone else is still using. Clear login_sent on     those paths. That is enough for tbnet_tear_down() to leave the unwound state alone, and login_received has     to stay set: it records that the peer has logged in and carries the transmit path it gave us, which     nothing on this side can make the peer send again. Two things change beyond keeping the teardown out of     the way: the logout request in that block is no longer sent, and the peer's next login request now re-     queues our login work rather than connected_work, giving the connection a fresh login instead of a retry     on stale state. (CVE-2026-80989)

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

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Linux Distros Unpatched Vulnerability : CVE-2026-80989

high Nessus Plugin ID 345326

Version 1.3