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    CVE-2026-42469

    Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_canswitch.cpp the parser does not properly validate a CANswitch DLC value, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted CANswitch frames.

    Published:May 1, 2026
    Last Modified:May 20, 2026
    EPS:May 1, 2026
    EPSS Score:0.00243
    CVSS Score:8.6

    Affected Products

    Vendor
    Openvehicles
    Product
    Open Vehicle Monitoring System
    Vendor
    Openvehicles
    Product
    Open Vehicle Monitoring System 3
    Vendor
    Openvehicles
    Product
    Open Vehicle Monitoring System Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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