{"id":"CVE-2011-4861","aliases":["EUVD-2011-4778","GHSA-qjpg-9j88-997j"],"status":"published","title":"The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771...","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.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03036,"percentile":0.87593,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2011-12-17T11:00:00Z","modified":"2026-06-16T23:35:31Z","products":[{"vendor":"schneider-electric","product":"quantum_ethernet_module_140noe77100"},{"vendor":"schneider-electric","product":"quantum_ethernet_module_140noe77101"},{"vendor":"schneider-electric","product":"quantum_ethernet_module_140noe77111"}],"references":[{"url":"http://reversemode.com/index.php?option=com_content\u0026task=view\u0026id=80\u0026Itemid=1","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4861"},{"url":"https://github.com/advisories/GHSA-qjpg-9j88-997j"}],"sources":{"cve":[{"id":"CVE-2011-4861","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.","status":"published","published":"2011-12-17T11:00:00Z","modified":"2024-09-16T18:24:28.56Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4778","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.","status":"published","published":"2011-12-17T11:00:00Z","modified":"2024-09-16T18:24:28Z","updated_at":"2026-11-03T00:55:32.945265Z"}],"ghsa":[{"id":"GHSA-qjpg-9j88-997j","title":"The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771...","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.","status":"published","published":"2022-05-17T05:36:01Z","modified":"2023-01-28T05:04:21Z","updated_at":"2026-11-02T14:44:09.520474Z"}],"nvd":[{"id":"CVE-2011-4861","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.","status":"published","published":"2011-12-17T11:55:12.37Z","modified":"2026-06-16T23:35:31.733Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:11.800512Z"}]}}