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    CVE-2025-5866

    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.

    Published:Jun 9, 2025
    Last Modified:Jul 11, 2025
    EPS:Jun 9, 2025
    EPSS Score:0.00183
    CVSS Score:8

    Affected Products

    Vendor
    Rt-thread
    Product
    Rt-thread

    Exploits

    https://github.com/RT-Thread/rt-thread/issues/10300

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High