CVE-2025-5866
High
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.
SeverityHigh
CVSS8.0
Exploit probability—
ProductRt-thread
PublishedJun 9, 2025
First seenJun 9, 2025
Weakness typeCWE-129CWE-129CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rt-thread rt-thread | 5.1.0 | — |
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