ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2025-5867

A vulnerability classified as critical was found in RT-Thread 5.1.0.

Published Jun 9, 2025 · catalog updated Jun 9, 2025 · RT-Thread

Check if you run it

No confirmed exploitation is on record for CVE-2025-5867. EPSS is 1.11%. 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.
Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.11%
Remediation
Vendor / distro source
Affected products
vendor n/a RT-Thread 5.1.0

A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.

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-2025-5867

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-2025-5867. EPSS is 1.11%. 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 1.11%. 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.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 9, 2025 · EUVD

    Detected

    A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.

  2. Jun 9, 2025 · EUVD

    Updated

    A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.

Sources

  • CVE.orgVulnerability recordCVE-2025-5867

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-5867

    30-day exploitation probability 1.1%

    first.org
  • EUVDVulnerability recordEUVD-2025-17443

    A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.