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

  - macvlan: inherit needed_headroom and needed_tailroom from lowerdev macvlan devices inherit hard_header_len     from lowerdev during macvlan_init(), but leave needed_headroom and needed_tailroom set to 0. When the     underlying lowerdev requires extra headroom or tailroom for headers/trailers (e.g. macsec, ipsec,     wireguard, tunnels, or veth with rx headroom), upper layers calculating packet headroom and tailroom fail     to reserve sufficient space. This can result in reallocation overhead, skb headroom underflows, or KASAN     slab-use-after-free crashes when dev_hard_header() / macvlan_hard_header() prepends header data or when     lower devices append tailroom. Fix this by: 1. Inheriting needed_headroom and needed_tailroom from     lowerdev in macvlan_init(). 2. Propagating needed_headroom and needed_tailroom updates to attached     macvlans in macvlan_device_event() when receiving NETDEV_FEAT_CHANGE events. (CVE-2026-74743)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-74743

critical Nessus Plugin ID 340763

Version 1.10

Version 1.9

Version 1.8

Version 1.6

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.10 Sep 10, 2026, 3:20 PM CVSS metrics ("CVSSv2 score" set to 10.0) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") Plugin Feed: 202609101520
Version 1.9 Sep 9, 2026, 2:39 AM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202609090239
Version 1.8 Sep 3, 2026, 1:08 PM CVSS metrics ("CVSSv2 score" set to 10.0. "CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202609031308
Version 1.6 Sep 2, 2026, 6:07 PM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202609021807
Version 1.5 Sep 1, 2026, 11:39 AM CVSS metrics ("CVSSv2 score" set to 10.0) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") Plugin Feed: 202609011139
Version 1.4 Aug 31, 2026, 10:57 PM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202608312257
Version 1.3 Aug 28, 2026, 12:16 PM CVSS metrics ("CVSSv2 score" set to 10.0) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") Plugin Feed: 202608281216
Version 1.2 Aug 27, 2026, 3:41 PM CVSS metrics ("CVSSv2 score" set to 7.2) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202608271541
Version 1.1 Aug 27, 2026, 5:05 AM New Plugin Feed: 202608270505