CVE-2021-34992

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    CVE-2021-34992

    Published: 15 Nov 2021Last Modified: 8 Jul 2026

    Summary:

    Details: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Orckestra C1 CMS 6.10. Authentication is required to exploit this vulnerability. The specific flaw exists within Composite.dll. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-14740.

    References: https://www.zerodayinitiative.com/advisories/ZDI-21-1304/, https://github.com/Orckestra/C1-CMS-Foundation/releases/tag/v6.11

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b918360aba84ef648ab607d9cbfb3ddf7bd815c5
    Fixed -None

    Affected versions

    6.10

    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-2021-34992 | CVE-DB