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    CVE-2017-20228

    Flat Assembler 1.71.21 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying oversized input to the application. Attackers can craft malicious assembly input exceeding 5895 bytes to overwrite the instruction pointer and execute return-oriented programming chains for shell command execution.

    Published:Mar 28, 2026
    Last Modified:Apr 3, 2026
    EPS:Mar 28, 2026
    EPSS Score:0.00013
    CVSS Score:8.4

    Affected Products

    Vendor
    Flatassembler
    Product
    Flat Assembler

    Exploits

    https://www.exploit-db.com/exploits/42265

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    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