The Bank of Tokyo-Mitsubishi UFJ, Ltd. App for Android ver5.3.1, ver5.2.2 and earlier allow a man-in-the-middle attacker to downgrade the communication between the app and the server from TLS v1.2 to SSL v3.0, which may result in the attacker to eavesdrop on an encrypted communication.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mitsubishi_ufj | Mufg | * | 5.2.2 (including) |
| Mitsubishi_ufj | Mufg | 5.3.1 (including) | 5.3.1 (including) |