CVE-2025-10456 Bluetooth: Semi-Arbitrary ability to make the BLE Target send disconnection requests
An attacker can trigger undefined behavior in Zephyr RTOS BLE stacks via fixed channel disconnection requests, potentially causing crashes or memory corruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-10456?
CVE-2025-10456 is a high-severity vulnerability in Zephyrproject Zephyr, published on 19 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was identified in the handling of Bluetooth Low Energy (BLE) fixed channels (such as SMP or ATT). Specifically, an attacker could exploit a flaw that causes the BLE target (i.e., the device under attack) to attempt to disconnect a fixed channel, which is not allowed per the Bluetooth specification. This leads to undefined behavior, including potential assertion failures, crashes, or memory corruption, depending on the BLE stack implementation.
Weakness: CWE-190
Which versions are affected by CVE-2025-10456?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2025-10456?
No fix has been published for CVE-2025-10456 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-10456 being exploited?
There is no known exploitation of CVE-2025-10456 in the wild and no public exploit code.
Other vulnerabilities in Zephyrproject Zephyr
- CVE-2026-5067 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key
- CVE-2022-3806 Bluetooth HCI Error Handling Double Free
- CVE-2017-14199 Memory corruption in getaddrinfo
- CVE-2018-1000800 Null dereference in n/a
- CVE-2021-3329 DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer
Sources
Also known as GHSA-hcc8-3qr7-c9m8.