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Vulnerabilities

Vulnerability · CVE-2025-6693

A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0.

Published Jun 26, 2025 · catalog updated Jun 26, 2025 · RT-Thread

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-6693. EPSS is 0.29%. Act only if a listed version of RT-Thread is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.29%
Remediation
Vendor / distro source
Affected products
vendor n/a RT-Thread 5.1.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a RT-Thread 5.1.05.1.0

How to fix CVE-2025-6693

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-6693. EPSS is 0.29%. Act only if a listed version of RT-Thread is installed.

Which versions are affected?

Compare what you have installed with n/a RT-Thread 5.1.0 5.1.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 26, 2025 · EUVD

    Detected

    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 thi

  2. Jun 26, 2025 · EUVD

    Updated

    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 thi

Sources

  • CVE.orgVulnerability recordCVE-2025-6693

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-6693

    30-day exploitation probability 0.29%

    first.org
  • EUVDVulnerability recordEUVD-2025-28759

    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 lea

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026