Medium severity · published Dec 15, 2025
CVE-2025-12035
Bluetooth: Integer Overflow in Bluetooth Classic (BR/EDR) L2CAP
6.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZE
Zephyr · zephyrproject-rtos
before 4.3.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-12035
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-12035
github.com
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p793-3456-h7w3
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