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    CVE-2024-40494

    Buffer Overflow in coap_msg.c in FreeCoAP allows remote attackers to execute arbitrary code or cause a denial of service (stack buffer overflow) via a crafted packet.

    Published:Oct 22, 2024
    Last Modified:Jun 24, 2025
    EPS:Oct 22, 2024
    EPSS Score:0.00889
    CVSS Score:9.8

    Affected Products

    Vendor
    Keith-cullen
    Product
    Freecoap
    Vendor
    Keithcullen
    Product
    Freecoap

    Exploits

    https://github.com/dqp10515/security/tree/main/FreeCoAP_bug

    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