V20 PRO L-01J software version L01J20c and L01J20d has a NULL pointer exception flaw that can be used by an attacker to cause the device to crash on the same network range via a specially crafted access point.Referenceshttp://jvn.jp/en/jp/JVN40439414/index.htmlhttps://www.nttdocomo.co.jp/support/utilization/product_update/list/l01j/index.html