CVE-2022-25304

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    CVE-2022-25304

    Published: 23 Aug 2022Last Modified: 13 Jul 2026

    Summary:

    Details: All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

    References: https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731, https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730, https://github.com/FreeOpcUa/python-opcua/issues/1466

    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-2022-25304 | CVE-DB