Ambit DDW2600 5.100.1009, DDW2602 5.105.1003, T60C926 4.64.1012, and U10C019 5.66.1026 devices allow remote attackers to discover credentials via iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 SNMP requests.