VDB

CVE-2020-7559

CVE-2020-7559 PUBLISHED CVSS 7.5 HIGH

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause a crash of the PLC simulator present in EcoStruxureª Control Expert software when receiving a specially crafted request over Modbus.

EPSS 0.50% · 66.6th percentile

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.50%
66.6th percentile

Affected Products

VendorProductVersions
n/aPLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)
schneider-electricecostruxure_control_expert

Exploit Intelligence

Timeline

  • Nov 12, 2020 CVE Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Aug 24, 2021 EPSS Score
  • Oct 26, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Feb 28, 2022 EPSS Score
  • Apr 1, 2022 EPSS Score
  • May 1, 2022 EPSS Score
  • Jul 3, 2022 EPSS Score
  • Sep 4, 2022 EPSS Score

References

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