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

  - openvswitch: avoid reallocating confirmed conntrack labels ovs_ct_get_conn_labels() adds the labels     extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding     an extension may reallocate and free the extension block while another CPU accesses it. Only add the     extension for unconfirmed conntracks. A confirmed conntrack without labels now fails the caller's label     operation instead of reallocating its extension storage. (CVE-2026-98251)

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-2026-98251

high Nessus Plugin ID 363169

Version 1.4