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

  - virtio-net: fix received length check in big packets Since commit 4959aebba8c0 (virtio-net: use mtu size     as buffer length for big packets), when guest gso is off, the allocated size for big packets is not     MAX_SKB_FRAGS * PAGE_SIZE anymore but depends on negotiated MTU. The number of allocated frags for big     packets is stored in vi->big_packets_num_skbfrags. Because the host announced buffer length can be     malicious (e.g. the host vhost_net driver's get_rx_bufs is modified to announce incorrect length), we need     a check in virtio_net receive path. Currently, the check is not adapted to the new change which can lead     to NULL page pointer dereference in the below while loop when receiving length that is larger than the     allocated one. This commit fixes the received length check corresponding to the new change.
    (CVE-2025-40292)

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

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Linux Distros Unpatched Vulnerability : CVE-2025-40292

high Nessus Plugin ID 277631

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.5 Dec 15, 2025, 9:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512152139
Version 1.4 Dec 11, 2025, 12:59 PM CVSS metrics ("CVSSv3 score" set to 7.0) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H") CVSSv3 severity (based on None, severity increased from "Medium" to "High") Detection (updated detection logic) Plugin metadata Plugin Feed: 202512111259
Version 1.3 Dec 10, 2025, 9:29 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512100929
Version 1.2 Dec 9, 2025, 2:31 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512090231
Version 1.1 Dec 8, 2025, 6:20 PM New Plugin Feed: 202512081820