CVE-2026-10685 Use-after-free of GATT subscribe params in Bluetooth host CCC-write response handler

The Zephyr Bluetooth GATT client CCC-write response handler gattwritecccrsp in subsys/bluetooth/host/gatt.c invoked the application's params-subscribe callback after it had already called params-notifyconn, params, NULL, 0. Per the public GATT API, a notify callback with NULL data is the document...

PT-2026-66758

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description In the Bluetooth GATT client, the CCC-write response handler gatt write ccc rsp in subsys/bluetooth/host/gatt.c invokes the params-subscribe callback after calling params-notifyconn, params,...