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    CVE-2017-9544

    There is a remote stack-based buffer overflow (SEH) in register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1. By sending an overly long username string to registresult.htm for registering the user, an attacker may be able to execute arbitrary code.

    Published:Jun 12, 2017
    Last Modified:Apr 20, 2025
    EPS:Jun 12, 2017
    EPSS Score:0.48335
    CVSS Score:9.8

    Affected Products

    Vendor
    Echatserver
    Product
    Easy Chat Server

    Exploits

    https://www.exploit-db.com/exploits/42155/https://www.exploit-db.com/exploits/42155/https://github.com/adenkiewicz/CVE-2017-9544

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2018-25221 (CVSS 9.3) — EChat Server 3.1 contains a buffer overflow vulnerability in the chat.ghp endpoint that allows remote attacker…
    CVE-2019-25613 (CVSS 8.7) — Easy Chat Server 3.1 contains a denial of service vulnerability that allows remote attackers to crash the appl…
    CVE-2022-44939 (CVSS 7.8) — Efs Software Easy Chat Server Version 3.1 was discovered to contain a DLL hijacking vulnerability via the comp…
    CVE-2019-20502 (CVSS 7.5) — An issue was discovered in EFS Easy Chat Server 3.1. There is a buffer overflow via a long body2.ghp message p…
    CVE-2017-9557 (CVSS 7.5) — register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers to discover password…
    CVE-2017-9543 (CVSS 7.5) — register.ghp in EFS Software Easy Chat Server versions 2.0 to 3.1 allows remote attackers to reset arbitrary p…

    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