CVE-2025-5866 HIGH

CVE-2025-5866: RT-Thread lwp_syscall.c sys_sigprocmask array index

Vendor N/A
Product RT-Thread
Weakness CWE-129
Published June 9, 2025
Last update June 9, 2025
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 9, 2025 CVE published
June 9, 2025 Record updated