Memory Corruption in RT-Thread Affects Critical Drivers
CVE-2025-6693

8.5HIGH

Key Information:

Vendor

RT-Thread

Status
Rt-thread
Vendor
CVE Published:
26 June 2025

What is CVE-2025-6693?

A memory corruption vulnerability has been identified in the RT-Thread operating system affecting core driver functions such as sys_device_open, sys_device_read, and others within the components/drivers/core/device.c. Attackers leveraging this flaw can manipulate the system memory on a local host, potentially leading to severe operational disruptions. Despite early notifications, the vendor has not provided any responses regarding this issue.

Affected Version(s)

RT-Thread 5.0

RT-Thread 5.1.0

References

https://vuldb.com/?id.313959
vdb-entrytechnical-description
https://vuldb.com/?ctiid.313959
signaturepermissions-required
https://vuldb.com/?submit.595813
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zephyr Saxon (VulDB User)
.
CVE-2025-6693 : Memory Corruption in RT-Thread Affects Critical Drivers