Arbitrary Firmware Update Vulnerability in Schneider Electric Quantum Ethernet Module

CVE-2011-4861 · HIGH Severity

AV:N/AC:L/AU:N/C:C/I:C/A:C

The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the Quantum 140NOE771* module) allows remote attackers to install arbitrary firmware updates via a MODBUS 125 function code to TCP port 502.

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