VULNERABILITY INTELLIGENCE

CVE-2011-4861

CVSS score10 HIGH
EPSS probability3.04%
CISA KEVNot currently listed
Published2011-12-17
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:C/I:C/A:C

Description

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.

Primary references