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

  - rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a potential     integer overflow due to rounding up token_len before checking it, thereby allowing the length check to be     bypassed. Fix this by checking the unrounded value against len too (len is limited as the response must     fit in a single UDP packet). (CVE-2026-31633)

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

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Linux Distros Unpatched Vulnerability : CVE-2026-31633

critical Nessus Plugin ID 310493

Version 1.4