CVE-2026-53251

medium

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync hci_get_route() returns a reference-counted hci_dev pointer via hci_dev_hold(). The function exits normally or with an error without ever releasing it.

References

https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c

https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f

https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854

https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62

Details

Source: Mitre, NVD

Published: 2026-06-25

Updated: 2026-06-25

Risk Information

CVSS v2

Base Score: 4.6

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

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00175