CVE-2021-33516

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    CVE-2021-33516

    Published: 24 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: An issue was discovered in GUPnP before 1.0.7 and 1.1.x and 1.2.x before 1.2.5. It allows DNS rebinding. A remote web server can exploit this vulnerability to trick a victim's browser into triggering actions against local UPnP services implemented using this library. Depending on the affected service, this could be used for data exfiltration, data tempering, etc.

    References: https://gitlab.gnome.org/GNOME/gupnp/-/issues/24, https://discourse.gnome.org/t/security-relevant-releases-for-gupnp-issue-cve-2021-33516/6536

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ab250af4c92c0b495af360f8a903719c49446cde

    Affected versions

    gupnp-1.0.6
    gupnp-1.0.5
    gupnp-1.0.4
    gupnp-1.0.3
    gupnp-1.0.2
    gupnp-1.0.1
    gupnp-1.0.0

    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-2021-33516 | CVE-DB