CVE-2025-6693

| EUVD-2025-28759 HIGH
2025-06-26 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 15, 2026 - 23:54 vuln.today
EUVD ID Assigned
Mar 15, 2026 - 23:54 euvd
EUVD-2025-28759
PoC Detected
Jul 11, 2025 - 14:27 vuln.today
Public exploit code
CVE Published
Jun 26, 2025 - 13:15 nvd
HIGH 7.8

Description

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.

Analysis

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.

Technical Context

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state.

Affected Products

Affected products: Rt-Thread Rt-Thread

Remediation

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: +20

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CVE-2025-6693 vulnerability details – vuln.today

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