CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2020-7543
High (7.5) in schneider-electric. EPSS 1.3% chance of exploitation in the next 30 days.
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.
Severity
- EPSS
- 1.3% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
- CWE
- CWE-754
- Published
- Modified
- Record from
- the NVD, synced
Affected
- schneider-electric:modicon_m340_bmxp341000_firmware
- schneider-electric:modicon_m340_bmxp342000_firmware
- schneider-electric:modicon_m340_bmxp3420102_firmware
- schneider-electric:modicon_m340_bmxp3420102cl_firmware
- schneider-electric:modicon_m340_bmxp342020_firmware
- schneider-electric:modicon_m340_bmxp3420302_firmware
- schneider-electric:modicon_m340_bmxp3420302cl_firmware
- schneider-electric:modicon_m580_bmep581020_firmware
- schneider-electric:modicon_m580_bmep582020_firmware
- schneider-electric:modicon_m580_bmep582040_firmware
- schneider-electric:modicon_m580_bmep583020_firmware
- schneider-electric:modicon_m580_bmep583040_firmware
- schneider-electric:modicon_m580_bmep584020_firmware
- schneider-electric:modicon_m580_bmep584040_firmware
- schneider-electric:modicon_m580_bmep585040_firmware
- schneider-electric:modicon_m580_bmep586040_firmware