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CVE-2025-12035— Bluetooth: Integer Overflow in Bluetooth Classic (BR/EDR) L2CAP

Quick assessment

Affected
zephyrproject-rtos Zephyr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zephyr是Zephyr开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr存在安全漏洞，该漏洞源于bt_br_acl_recv例程中存在整数溢出，可能导致处理BR/EDR L2CAP流量时出现问题。

CVSS 6.5 · Medium EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-12035

Vulnerability Information
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Vulnerability Title
Bluetooth: Integer Overflow in Bluetooth Classic (BR/EDR) L2CAP
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Zephyr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zephyr是Zephyr开源的一个可扩展的实时操作系统 (RTOS)。 Zephyr存在安全漏洞，该漏洞源于bt_br_acl_recv例程中存在整数溢出，可能导致处理BR/EDR L2CAP流量时出现问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zephyrproject-rtos Zephyr * ~ 4.2 -

II. Public POCs for CVE-2025-12035

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III. Intelligence Information for CVE-2025-12035

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Vendor Advisories for CVE-2025-12035 (1)

IV. Related Vulnerabilities

Same product: Zephyr
Same vendor: zephyrproject-rtos
Same weakness: CWE-190

V. Comments for CVE-2025-12035

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