CVE-2020-7542
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.34% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- schneider-electric/modicon m580 bmep584040 firmware · schneider-electric/modicon m580 bmep582040 firmware · schneider-electric/modicon m580 bmep586040 firmware · schneider-electric/modicon m580 bmep585040 firmware · schneider-electric/modicon m580 bmep582020 firmware · schneider-electric/modicon m580 bmep581020 firmware · schneider-electric/modicon m580 bmep584020 firmware · schneider-electric/modicon m580 bmep583040 firmware · schneider-electric/modicon m580 bmep583020 firmware · 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/tsxp574634 firmware · schneider-electric/tsxp575634 firmware · schneider-electric/tsxp576634 firmware · schneider-electric/140cpu65150 firmware
- Source
- cybersecurity@se.com
References
- https://www.se.com/ww/en/download/document/SEVD-2020-343-08/Vendor Advisory
- https://www.se.com/ww/en/download/document/SEVD-2020-343-08/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.