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

  - net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak     When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink     message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data     The fix is simple, just zeroes the padding fields. (CVE-2026-43040)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-43040

high Nessus Plugin ID 311601

Version 1.2

Version 1.1

Version 1.2 May 3, 2026, 4:59 AM 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") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605030459
Version 1.1 May 2, 2026, 11:12 PM New Plugin Feed: 202605022312