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    CVE-2019-25679

    RealTerm Serial Terminal 2.0.0.70 contains a structured exception handling (SEH) buffer overflow vulnerability in the Echo Port tab that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a buffer overflow payload with a POP POP RET gadget chain and shellcode that triggers code execution when pasted into the Port field and the Change button is clicked.

    Published:Apr 5, 2026
    Last Modified:Apr 20, 2026
    EPS:Apr 5, 2026
    EPSS Score:0.00015
    CVSS Score:7.8

    Affected Products

    Vendor
    Crun
    Product
    Realterm
    Vendor
    Realterm
    Product
    Realterm: Serial Terminal

    Exploits

    https://www.exploit-db.com/exploits/46441

    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