Linux Kernel Bluetooth stack Vulnerability Rated 8.8 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-80692

Key Details

CVE	CVE-2026-80692
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-15
CVSS Vector	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is adjacent; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Exploitation prediction (EPSS)	0.34% probability of exploitation in the next 30 days (26% percentile) -- FIRST.org's EPSS model.

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_sync: hold conn in hci_connect_acl/le_sync() callbacks

There is theoretical UAF if the conn is freed while the hci_sync task

is running.

Hold refcount to avoid that. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80692
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80692

Source

Reference

NVD

CVE