Canon PIXMA TR4550 1.020 / 1.080 Unencrypted Secret Storage

The Canon PIXMA TR4550 stores sensitive data, such as the SSID and the Wi-Fi pre-shared key (PSK), unencrypted in its persistent storage (EEPROM). Resetting the product to factory settings does not securely delete this sensitive information. Versions 1.020 and 1.080 are affected.

canon data delete information key persistent product secret sensitive data sensitive information settings ssid storage unencrypted wi-fi