CVE-2025-5866 – RT-Thread Array Index Validation Vulnerability

CVE ID : CVE-2025-5866

Published : June 9, 2025, 7:15 a.m. | 1 hour, 44 minutes ago

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.

Severity: 8.0 | HIGH

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