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

  - Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync hci_le_big_create_sync() uses     DEFINE_FLEX to allocate a struct hci_cp_le_big_create_sync on the stack with room for 0x11 (17) BIS     entries. However, conn->num_bis can hold up to HCI_MAX_ISO_BIS (31) entries  validated against     ISO_MAX_NUM_BIS (0x1f) in the caller hci_conn_big_create_sync(). When conn->num_bis is between 18 and 31,     the memcpy that copies conn->bis into cp->bis writes up to 14 bytes past the stack buffer, corrupting     adjacent stack memory. This is trivially reproducible: binding an ISO socket with bc_num_bis =     ISO_MAX_NUM_BIS (31) and calling listen() will eventually trigger hci_le_big_create_sync() from the HCI     command sync worker, causing a KASAN-detectable stack-out-of-bounds write: BUG: KASAN: stack-out-of-bounds     in hci_le_big_create_sync+0x256/0x3b0 Write of size 31 at addr ffffc90000487b48 by task kworker/u9:0/71     Fix this by changing the DEFINE_FLEX count from the incorrect 0x11 to HCI_MAX_ISO_BIS, which matches the     maximum number of BIS entries that conn->bis can actually carry. (CVE-2026-31772)

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Linux Distros Unpatched Vulnerability : CVE-2026-31772

high Nessus Plugin ID 311708

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.5 May 20, 2026, 10:33 PM CVSS metrics ("CVSSv2 score" set to 5.8) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P") Detection (updated detection logic) Plugin Feed: 202605202233
Version 1.4 May 8, 2026, 1:55 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202605080155
Version 1.3 May 5, 2026, 10:13 PM CVSS metrics ("CVSSv2 score" set to 6.8) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:P/I:C/A:C") Detection (updated detection logic) Plugin metadata Plugin Feed: 202605052213
Version 1.2 May 4, 2026, 9:33 AM 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") Plugin Feed: 202605040933
Version 1.1 May 2, 2026, 11:12 PM New Plugin Feed: 202605022312