VULNERABILITY INTELLIGENCE

CVE-2025-5866

CVSS score8 HIGH

EPSS probability0.83%

CISA KEVNot currently listed

Published2025-06-09

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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

Weakness classification

cna@vuldb.com: CWE-119
nvd@nist.gov: CWE-129

Primary references

cna@vuldb.com — Exploit, Issue Tracking, Third Party Advisory
cna@vuldb.com — Permissions Required, VDB Entry
cna@vuldb.com — Third Party Advisory, VDB Entry
cna@vuldb.com — Third Party Advisory, VDB Entry