CVE-2025-6693 HIGH

CVE-2025-6693: RT-Thread device.c sys_device_write memory corruption

Vendor N/A
Product RT-Thread
Weakness CWE-119
Published June 26, 2025
Last update June 26, 2025

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X

What the vulnerability does

01Description

A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

June 26, 2025 CVE published
June 26, 2025 Record updated