Use After Free in Zephyrproject Zephyr
CVE-2026-10685
The Zephyr Bluetooth GATT client CCC-write response handler gatt_write_ccc_rsp() in subsys/bluetooth/host/gatt.c invoked the application's params->subscribe() callback after it had already called params->notify(conn, params, NULL, 0). Per…
Vulnerability class: Use-After-Free
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Zephyrproject Zephyr — versions 2.4.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-10685?
- CVE-2026-10685 is a high-severity vulnerability in Zephyrproject Zephyr, classified under Use After Free. CVSS score: 7.6/10. Published 2026-07-31.
- How severe is CVE-2026-10685?
- High severity. CVSS v3 base score is 7.6 out of 10.