CVE-2026-80759

high

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_aml: validate firmware segment lengths aml_download_firmware() reads two lengths from the firmware header and uses them to build pointers before checking that the header and segment data are present. A truncated or inconsistent firmware image can make the driver read past firmware->data while constructing TCI commands. Reject images shorter than the header and ensure that the ICCM and DCCM ranges fit within the loaded firmware before downloading either segment.

References

https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9

https://git.kernel.org/stable/c/7733b01ed13685773ccda91035a46f87d4cfef7c

https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80

https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4

https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b

Details

Source: Mitre, NVD

Published: 2026-09-04

Updated: 2026-09-04

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00168