CVE-2026-74302

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74302

Key Details

CVE	CVE-2026-74302
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_core: Fix UAF in hci_unregister_dev()

hci_unregister_dev() does not disable cmd_timer and ncmd_timer

before the hci_dev structure is freed. If a timeout fires

during device teardown, the callback dereferences freed memory

(including the hdev->reset function pointer), leading to a

use-after-free.

Add disable_delayed_work_sync() calls alongside the existing

disable_work_sync() calls to ensure both timers are fully

quiesced before teardown proceeds. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74302
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74302

Source

Reference

NVD

CVE