CVE-2026-80692

Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks

CVE-2026-80692 is fixed in 11 products on 1 platform, first by DEBIAN-CVE-2026-80692, released August 29, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.8

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0026

17th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
kernel-64kb · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-azure · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-default · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-default-base · sles 15.7	6.4.0-150700.53.90.1.150700.17.51.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-docs · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-livepatch-SLE15-SP7_Update_24 · sles 15.7	1-150700.15.3.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-obs-build · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-source · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-syms · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
kernel-zfcpdump · sles 15.7	6.4.0-150700.53.90.1	SUSE-SU-2026:5091-1	Nov 7, 2026
linux · Debian 13.5 (trixie)	6.12.115-2	DEBIAN-CVE-2026-80692	Aug 29, 2026
linux · Debian 14	7.1.8-1	DEBIAN-CVE-2026-80692	Aug 29, 2026

Details

Published
August 28, 2026
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80692

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