CVEvulnerability

CVE-2020-7542

7.5 HIGH Published 2020-12-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-12-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-754

Description

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.

Affected configurations

• schneider-electric modicon m580 bmep584040 firmware (< 3.20) • schneider-electric modicon m580 bmep582040 firmware (< 3.20) • schneider-electric modicon m580 bmep586040 firmware (< 3.20) • schneider-electric modicon m580 bmep585040 firmware (< 3.20) • schneider-electric modicon m580 bmep582020 firmware (< 3.20) • schneider-electric modicon m580 bmep581020 firmware (< 3.20) • schneider-electric modicon m580 bmep584020 firmware (< 3.20) • schneider-electric modicon m580 bmep583040 firmware (< 3.20) • schneider-electric modicon m580 bmep583020 firmware (< 3.20) • schneider-electric modicon m340 bmxp341000 firmware (< 3.30) • schneider-electric modicon m340 bmxp342000 firmware (< 3.30) • schneider-electric modicon m340 bmxp3420102 firmware (< 3.30) • schneider-electric modicon m340 bmxp3420102cl firmware (< 3.30) • schneider-electric modicon m340 bmxp342020 firmware (< 3.30) • schneider-electric modicon m340 bmxp3420302 firmware (< 3.30) • schneider-electric modicon m340 bmxp3420302cl firmware (< 3.30) • schneider-electric tsxp574634 firmware • schneider-electric tsxp575634 firmware • schneider-electric tsxp576634 firmware • schneider-electric 140cpu65150 firmware

Related

Weakness · CWE (1)

  • CWE-754 Improper Check for Unusual or Exceptional Conditions weakness

References