Pilz PNOZmulti Configurator prior to version 10.9 allows an authenticated attacker with local access to the system containing the PNOZmulti Configurator software to view sensitive credential data in clear-text. This sensitive data is applicable to only the PMI m107 diag HMI device. An attacker with access to this sensitive data and physical access to the PMI m107 diag can modify data on the HMI device.