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    CVE-1999-1538

    When IIS 2 or 3 is upgraded to IIS 4, ism.dll is inadvertently left in /scripts/iisadmin, which does not restrict access to the local machine and allows an unauthorized user to gain access to sensitive server information, including the Administrator's password.

    Published:Jan 14, 1999
    Last Modified:Apr 16, 2026
    EPS:Sep 12, 2001
    EPSS Score:0.50259
    CVSS Score:2.1

    Affected Products

    Vendor
    Microsoft
    Product
    Internet Information Server

    Exploits

    http://www.securityfocus.com/bid/189http://www.securityfocus.com/bid/189https://www.exploit-db.com/exploits/19147

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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