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Status published
High
CVE-2020-7559
A CWE-120: Buffer Copy without Checking Size of Input ('Classic...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Affected Software
PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)
Vulnerable Versions:
PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions)
Timeline
Official Publish:
November 19th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H