static void vnc_qmp_event(VncState *vs, QAPIEvent event)
{
    VncServerInfo *si;

    if (!vs->info) {
        return;
    }
    g_assert(vs->info->base);

    si = vnc_server_info_get();
    if (!si) {
        return;
    }

    switch (event) {
    case QAPI_EVENT_VNC_CONNECTED:
        qapi_event_send_vnc_connected(si, vs->info->base, &error_abort);
        break;
    case QAPI_EVENT_VNC_INITIALIZED:
        qapi_event_send_vnc_initialized(si, vs->info, &error_abort);
        break;
    case QAPI_EVENT_VNC_DISCONNECTED:
        qapi_event_send_vnc_disconnected(si, vs->info, &error_abort);
        break;
    default:
        break;
    }

    qapi_free_VncServerInfo(si);
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.