# CVE-2025-5868

## Summary

- **CVE ID:** CVE-2025-5868
- **Severity:** HIGH
- **CVSS Score:** 8.6 (CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X)
- **CWE:** CWE-129, CWE-119
- **Published:** Jun 9, 2025
- **Last Modified:** Mar 13, 2026

## Description

A vulnerability, which was classified as critical, has been found in RT-Thread 5.1.0. This issue affects the function sys_thread_sigprocmask of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument how leads to improper validation of array index.

## Affected Products

- n/a — RT-Thread (5.1.0)

## References

- [CNA](https://vuldb.com/?id.311627)
- [CNA](https://vuldb.com/?ctiid.311627)
- [CNA](https://vuldb.com/?submit.584130)
- [CNA](https://github.com/RT-Thread/rt-thread/issues/10303)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.21%
- **EPSS Percentile:** 66.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._