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    CVE-2019-25569

    RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service.

    Published:Mar 21, 2026
    Last Modified:Mar 25, 2026
    EPS:Mar 21, 2026
    EPSS Score:0.00014
    CVSS Score:6.2

    Affected Products

    Vendor
    Crun
    Product
    Realterm
    Vendor
    Realterm
    Product
    Realterm: Serial Terminal

    Exploits

    https://www.exploit-db.com/exploits/46391

    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