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    CVE-2021-40154

    NXP LPC55S69 devices before A3 have a buffer over-read via a crafted wlength value in a GET Descriptor Configuration request during use of USB In-System Programming (ISP) mode. This discloses protected flash memory.

    Published:Dec 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 1, 2021
    EPSS Score:0.00629
    CVSS Score:6.1

    Affected Products

    Vendor
    Nxp
    Product
    Lpc55s69jbd100
    Vendor
    Nxp
    Product
    Lpc55s69jbd100 Firmware
    Vendor
    Nxp
    Product
    Lpc55s69jbd64
    Vendor
    Nxp
    Product
    Lpc55s69jbd64 Firmware
    Vendor
    Nxp
    Product
    Lpc55s69jev98
    Vendor
    Nxp
    Product
    Lpc55s69jev98 Firmware

    Exploits

    https://github.com/Jeromeyoung/CVE-2021-40154

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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