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

  - rtnetlink: add missing netlink_ns_capable() check for peer netns rtnl_newlink() lacks a CAP_NET_ADMIN     capability check on the peer network namespace when creating paired devices (veth, vxcan, netkit). This     allows an unprivileged user with a user namespace to create interfaces in arbitrary network namespaces,     including init_net. Add a netlink_ns_capable() check for CAP_NET_ADMIN in the peer namespace before     allowing device creation to proceed. (CVE-2026-31692)

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-2026-31692

medium Nessus Plugin ID 311254

Version 1.14