Certain HP Enterprise LaserJet, and HP LaserJet Managed Printers are potentially vulnerable to information disclosure, when connections made by the device back to services enabled by some solutions may have been trusted without the appropriate CA certificate in the device's certificate store.
An issue was discovered in Elspec G5 digital fault recorder versions 1.1.4.15 and before. A hardcoded backdoor session ID exists that can be used for further access to the device, including reconfiguration tasks.