NIP6800;Secospace USG6600;USG9500 products versions of V500R001C30; V500R001C60SPC500; V500R005C00SPC100 have an invalid pointer access vulnerability. The software system access an invalid pointer when an abnormal condition occurs in certain operation. Successful exploit could cause certain process reboot. Affected product versions include:NIP6800 versions V500R001C30,V500R001C60SPC500;Secospace USG6600 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500;USG9500 versions V500R001C30SPC200,V500R001C30SPC600,V500R001C60SPC500.