Moxa MiiNePort_E1_4641 devices with firmware 1.1.10 Build 09120714, MiiNePort_E1_7080 devices with firmware 1.1.10 Build 09120714, MiiNePort_E2_1242 devices with firmware 1.1 Build 10080614, MiiNePort_E2_4561 devices with firmware 1.1 Build 10080614, and MiiNePort E3 devices with firmware 1.0 Build 11071409 allow remote attackers to obtain sensitive cleartext information by reading a configuration file.