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CVE-2025-5866
Good to know:

Date: June 9, 2025
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 Score
Severity Score
Weakness Type (CWE)
Top Fix

Upgrade Version
Upgrade to version https://github.com/RT-Thread/rt-thread.git - null
CVSS v3.1
Base Score: |
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Attack Vector (AV): | ADJACENT_NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | LOW |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |
CVSS v2
Base Score: |
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Access Vector (AV): | ADJACENT |
Access Complexity (AC): | MEDIUM |
Authentication (AU): | SINGLE |
Confidentiality (C): | COMPLETE |
Integrity (I): | COMPLETE |
Availability (A): | COMPLETE |
Additional information: |