Rakuten Mobile Rakuten Casa is a small base station from Rakuten Mobile Japan, Inc. It is used to improve radio wave conditions for users.An access control error vulnerability exists in Rakuten Mobile Rakuten Casa AP_F_V2_0_0 version and AP_F_V1_4_1 version, which stems from improper access restrictions. A remote attacker could bypass the implemented security restrictions and gain unauthorized access to sensitive information on the system.