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

  - udp: call skb_orphan() before skb_attempt_defer_free() Standard UDP receive path does not use     skb->destructor. But skmsg layer does use it, since it calls skb_set_owner_sk_safe() from udp_read_skb().
    This then triggers this warning in skb_attempt_defer_free(): DEBUG_NET_WARN_ON_ONCE(skb->destructor); We     must call skb_orphan() to fix this issue. (CVE-2026-23048)

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

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-23048

high Nessus Plugin ID 297942

Version 1.2

Version 1.1

Version 1.2 Feb 9, 2026, 4:07 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") CVSS metrics ("CVSSv3 score" set to 7.1) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H") Detection (updated detection logic) Plugin metadata Plugin Feed: 202602091607
Version 1.1 Feb 5, 2026, 2:38 AM New Plugin Feed: 202602050238