CVE-2021-27432

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    CVE-2021-27432

    Published: 20 May 2021Last Modified: 9 Jul 2026

    Summary:

    Details: OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

    References: https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -56a54066a19590da7f61b73b98af6a8f09b86bc2

    Affected versions

    1.4.365.23
    1.4.365.10
    1.4.365.2
    1.4.363.49
    1.4.362.42
    1.4.361.39
    1.4.360.33
    1.4.359.31
    1.4.358.30
    1.4.357.28
    1.4.356.27
    1.4.355.26

    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-2021-27432 | CVE-DB