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    CVE-2021-27852

    Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code. This issue affects: Checkbox Survey versions prior to 7.

    Published:May 27, 2021
    Last Modified:Oct 24, 2025
    EPS:May 27, 2021
    EPSS Score:0.27961
    CVSS Score:9.8

    CISA Notification

    Description

    Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code. This issue affects: Checkbox Survey versions prior to 7.

    Required Action:

    Versions 6 and earlier for this product are end-of-life and must be removed from agency networks. Versions 7 and later are not considered vulnerable.

    Notes:

    No extra notes provided.

    Due Date
    May 2, 2022
    1593 days ago
    Alert Date
    Apr 11, 2022
    1614 days ago

    Affected Products

    Vendor
    Checkbox
    Product
    Survey

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    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