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    CVE-2025-7403

    Unsafe handling in bt_conn_tx_processor causes a use-after-free, resulting in a write-before-zero. The written 4 bytes are attacker-controlled, enabling precise memory corruption.

    Published:Sep 19, 2025
    Last Modified:Oct 29, 2025
    EPS:Sep 19, 2025
    EPSS Score:0.00019
    CVSS Score:7.6

    Affected Products

    Vendor
    Zephyrproject
    Product
    Zephyr
    Vendor
    Zephyrproject-rtos
    Product
    Zephyr

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-123 Write-what-where Condition

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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