A vulnerability related to the use an insecure Platform Key (PK) has been discovered. An attacker with the compromised PK private key can create malicious UEFI software that is signed with a trusted key that has been compromised.

The TopAccess web-based management interface on TOSHIBA TEC e-Studio multi-function peripheral (MFP) devices with firmware 30x through 302, 35x through 354, and 4xx through 421 allows remote attackers to bypass authentication and obtain administrative privileges via unspecified vectors.