CVE-2016-2563

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    CVE-2016-2563

    Published: 7 Apr 2016Last Modified: 16 Apr 2026

    Summary:

    Details: Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.

    References: http://seclists.org/fulldisclosure/2016/Mar/22, http://www.securityfocus.com/bid/84296, http://www.securitytracker.com/id/1035257, http://lists.opensuse.org/opensuse-updates/2016-05/msg00131.html, https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563, https://security.gentoo.org/glsa/201606-01, http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html

    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
    CVE-2016-2563 | CVE-DB