Integer overflow in Zephyrproject-Rtos Zephyr

CVE-2025-12035

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.

Vulnerability class: Integer Overflow

EPSS: 0.002 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-12035?
CVE-2025-12035 is a medium-severity vulnerability in Zephyrproject-Rtos Zephyr, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2025-12-15.
How severe is CVE-2025-12035?
Medium severity. CVSS v3 base score is 6.5 out of 10.