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

  - netfilter: nf_conntrack_sip: fix use of uninitialized rtp_addr in process_sdp process_sdp() declares union     nf_inet_addr rtp_addr on the stack and passes it to the nf_nat_sip sdp_session hook after walking the SDP     media descriptions. However rtp_addr is only initialized inside the media loop when a recognized media     type with a non-zero port is found. If the SDP body contains no m= lines, only inactive media sections     (m=audio 0 ...) or only unrecognized media types, rtp_addr is never assigned. Despite that, the function     still calls hooks->sdp_session() with &rtp_addr, causing nf_nat_sdp_session() to format the stale stack     value as an IP address and rewrite the SDP session owner and connection lines with it. With     CONFIG_INIT_STACK_ALL_ZERO (default on most distributions) this results in the session-level o= and c=     addresses being rewritten to 0.0.0.0 for inactive SDP sessions. Without stack auto-init the rewritten     address is whatever happened to be on the stack. Fix this by pre-initializing rtp_addr from the session-     level connection address (caddr) when available, and tracking via a have_rtp_addr flag whether any valid     address was established. Skip the sdp_session hook entirely when no valid address exists. (CVE-2026-31427)

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

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Linux Distros Unpatched Vulnerability : CVE-2026-31427

high Nessus Plugin ID 306174

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.5 May 3, 2026, 4:59 AM CVSS metrics ("CVSSv2 score" set to 8.8) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:M/Au:N/C:C/I:N/A:C") CVSSv2 severity (based on CVE-2026-31427, severity increased from "Medium" to "High") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605030459
Version 1.4 May 2, 2026, 11:12 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605022312
Version 1.3 Apr 17, 2026, 5:33 AM CVSS metrics ("CVSSv2 score" set to 6.3) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:C") CVSS metrics ("CVSSv3 score" set to 7.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/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: 202604170533
Version 1.2 Apr 14, 2026, 10:48 PM CVSS metrics ("CVSSv2 score" set to 5.4) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:C") CVSS metrics ("CVSSv3 score" set to 6.1) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H") 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