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    CVE-2021-27435

    ARM mbed product Version 6.3.0 is vulnerable to integer wrap-around in malloc_wrapper function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

    Published:May 3, 2022
    Last Modified:Apr 16, 2025
    EPS:May 3, 2022
    EPSS Score:0.03522
    CVSS Score:7.3

    Affected Products

    Vendor
    Arm
    Product
    Mbed

    Exploits

    https://github.com/ARMmbed/mbed-os/pull/14408https://github.com/ARMmbed/mbed-os/pull/14408

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    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