PatchTheCVECVE-2025-6693: A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0
CVE-2025-6693 is a high-severity flaw (CVSS 7.8) affecting rt-thread. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 79%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2025-06-26 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-6693?
rt-thread: upgrade to newer than 5.1.0. Exact commands for each OS are on this page.
Is CVE-2025-6693 being exploited?
CVE-2025-6693 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-6693 affect?
CVE-2025-6693 affects rt-thread. Severity is high (CVSS 7.8). 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/dri
How urgent is CVE-2025-6693?
Priority 38/100. High severity; Public exploit reference
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