CVE-2018-20250

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    CVE-2018-20250

    Published: 5 Feb 2019Last Modified: 10 Mar 2026

    Summary:

    Details: In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path.

    References: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20250, , https://www.win-rar.com/whatsnew.html, http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace, http://www.securityfocus.com/bid/106948, https://github.com/blau72/CVE-2018-20250-WinRAR-ACE, https://www.exploit-db.com/exploits/46552/, https://www.exploit-db.com/exploits/46756/, http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html, https://research.checkpoint.com/extracting-code-execution-from-winrar/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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