{"id":"CVE-2020-7477","aliases":["EUVD-2020-28602","GHSA-pf3g-p3qp-7mc8"],"status":"published","title":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum...","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01321,"percentile":0.71124,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-754"],"published":"2020-03-23T19:14:31Z","modified":"2026-06-17T03:24:51Z","products":[{"vendor":"schneider-electric","product":"140cpu65150_firmware"},{"vendor":"schneider-electric","product":"140cpu65160_firmware"},{"vendor":"schneider-electric","product":"140cpu65160s_firmware"},{"vendor":"schneider-electric","product":"140cpu65260_firmware"},{"vendor":"schneider-electric","product":"140cpu65860_firmware"},{"vendor":"schneider-electric","product":"140cpu67060_firmware"},{"vendor":"schneider-electric","product":"140cpu67160_firmware"},{"vendor":"schneider-electric","product":"140cpu67160s_firmware"},{"vendor":"schneider-electric","product":"140cpu67260_firmware"},{"vendor":"schneider-electric","product":"140cpu67261_firmware"},{"vendor":"schneider-electric","product":"140cpu67861_firmware"},{"vendor":"schneider-electric","product":"140noe77101_firmware"},{"vendor":"schneider-electric","product":"140noe77111_firmware"},{"vendor":"schneider-electric","product":"tsxh5724m_firmware"},{"vendor":"schneider-electric","product":"tsxh5744m_firmware"},{"vendor":"schneider-electric","product":"tsxp57104m_firmware"},{"vendor":"schneider-electric","product":"tsxp57154m_firmware"},{"vendor":"schneider-electric","product":"tsxp571634m_firmware"},{"vendor":"schneider-electric","product":"tsxp57204m_firmware"},{"vendor":"schneider-electric","product":"tsxp57254m_firmware"},{"vendor":"schneider-electric","product":"tsxp572634m_firmware"},{"vendor":"schneider-electric","product":"tsxp57304m_firmware"},{"vendor":"schneider-electric","product":"tsxp573634m_firmware"},{"vendor":"schneider-electric","product":"tsxp57454m_firmware"},{"vendor":"schneider-electric","product":"tsxp574634m_firmware"},{"vendor":"schneider-electric","product":"tsxp57554m_firmware"},{"vendor":"schneider-electric","product":"tsxp575634m_firmware"},{"vendor":"schneider-electric","product":"tsxp576634m_firmware"}],"references":[{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-070-02/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7477"},{"url":"https://www.se.com/ww/en/download/document/SEVD-2020-070-02"},{"url":"https://github.com/advisories/GHSA-pf3g-p3qp-7mc8"}],"sources":{"cve":[{"id":"CVE-2020-7477","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.","status":"published","published":"2020-03-23T19:14:31Z","modified":"2026-05-28T20:19:32.265Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:35:58.787905Z"}],"euvd":[{"id":"EUVD-2020-28602","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.","status":"published","published":"2020-03-23T19:14:31Z","modified":"2026-05-28T20:19:32Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:21:01.680356Z"}],"ghsa":[{"id":"GHSA-pf3g-p3qp-7mc8","title":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum...","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.","status":"published","published":"2022-05-24T22:28:50Z","modified":"2026-05-28T21:33:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:08:22.24664Z"}],"nvd":[{"id":"CVE-2020-7477","description":"A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Network module 140NOE771x1 (Versions 7.0 and prior), Quantum processors with integrated Ethernet – 140CPU65xxxxx (all Versions), and Premium processors with integrated Ethernet (all Versions), which could cause a Denial of Service when sending a specially crafted command over Modbus.","status":"published","published":"2020-03-23T20:15:12.23Z","modified":"2026-06-17T03:24:51.467Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:05:56.580228Z"}]}}