CVE-2025-6693

Name: CVE-2025-6693
Creator: NVD / NIST
Published: 2025-06-26T13:15:29.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.5/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2025-6693 is a high-severity vulnerability rated 8.5/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.5/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.25%

16.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Rt-Thread	Rt-Thread	<= 5.1.0

References

https://github.com/RT-Thread/rt-thread/issues/10387Exploit, Issue Tracking
https://vuldb.com/?ctiid.313959Permissions Required, VDB Entry
https://vuldb.com/?id.313959Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595813Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595814Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595827Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595869Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595870Third Party Advisory, VDB Entry
https://vuldb.com/?submit.595871Third Party Advisory, VDB Entry

Timeline

Published: Jun 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-6693?

How severe is CVE-2025-6693?

CVE-2025-6693 has a CVSS score of 8.5/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2025-6693?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-6693?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST