---
cve: "CVE-2026-53251"
severity: "LOW"
cvss: 3.1
epss: "12%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-06-25 09:16:43"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T07:49:21+02:00"
---

# CVE-2026-53251

> 3.1 LOW

## Beschreibung

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.

## Patch verfügbar (OSV)

- Kernel ≥ 6.12.94
- Kernel ≥ 6.18.36

## Referenzen

- <https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f>
- <https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854>
- <https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62>
- <https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53251) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_