CVE-2025-12035

Medium

Description

An integer overflow condition exists in Bluetooth Host stack, within the bt_br_acl_recv routine a critical path for processing inbound BR/EDR L2CAP traffic.

SeverityMedium
CVSS6.5
Exploit probability—
ProductZephyr
PublishedDec 15, 2025
First seenDec 15, 2025

How to fix

Update
  • zephyrproject-rtos Zephyr4.3.0 or later

Affected products

ProductAffected versionsFixed in
zephyrproject-rtos Zephyrv < 4.3.04.3.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.