What is CVE-2026-53251?

CVE-2026-53251 is a unscored severity Linux kernel vulnerability. CVE-2026-53251 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53251?

CVE-2026-53251 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-53251?

No patch is currently available for CVE-2026-53251. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2026-53251 actively exploited?

CVE-2026-53251 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53251

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.

Package Linux Kernel

Published 2026-06-25

Last modified 2026-06-25

Patch available

Awaiting data

References

4 total

Kernel Git
https://git.kernel.org/stable/c/23e8eb16820b866528fb300dc67fe3f67f00ef62
Kernel Git
https://git.kernel.org/stable/c/33d677d2e3713d98012c3dbd4a9207f7d785b854
Kernel Git
https://git.kernel.org/stable/c/4bbec25f47b930101294fd310c627c3f53e9661f
Kernel Git
https://git.kernel.org/stable/c/5cbf290b79351971f20c7a533247e8d58a3f970c