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

  - bridge: mrp: reject zero test interval to avoid OOM panic br_mrp_start_test() and br_mrp_start_in_test()     accept the user-supplied interval value from netlink without validation. When interval is 0,     usecs_to_jiffies(0) yields 0, causing the delayed work (br_mrp_test_work_expired /     br_mrp_in_test_work_expired) to reschedule itself with zero delay. This creates a tight loop on     system_percpu_wq that allocates and transmits MRP test frames at maximum rate, exhausting all system     memory and causing a kernel panic via OOM deadlock. The same zero-interval issue applies to     br_mrp_start_in_test_parse() for interconnect test frames. Use NLA_POLICY_MIN(NLA_U32, 1) in the     nla_policy tables for both IFLA_BRIDGE_MRP_START_TEST_INTERVAL and IFLA_BRIDGE_MRP_START_IN_TEST_INTERVAL,     so zero is rejected at the netlink attribute parsing layer before the value ever reaches the workqueue     scheduling code. This is consistent with how other bridge subsystems (br_fdb, br_mst) enforce range     constraints on netlink attributes. (CVE-2026-31420)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-31420

medium Nessus Plugin ID 306173

Version 1.7

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.7 May 25, 2026, 10:30 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605252230
Version 1.5 May 20, 2026, 10:33 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605202233
Version 1.4 Apr 25, 2026, 4:14 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604251614
Version 1.3 Apr 17, 2026, 5:33 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202604170533
Version 1.2 Apr 14, 2026, 10:48 PM CVSS metrics ("CVSSv2 score" set to 4.9) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C") CVSS metrics ("CVSSv3 score" set to 5.5) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H") CVSSv2 severity (based on CVE-2026-31420, severity decreased from "High" to "Medium") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202604142248
Version 1.1 Apr 13, 2026, 9:27 PM New Plugin Feed: 202604132127