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CVE-2020-7564

Published: Nov 18, 2020Updated: May 29, 2026 Sources: CVE List NVD BDU csafCWE-120
8.8HIGH
NVD MITRE
EPSS Score
1.1%
Top 34.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists in the Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-120

Affected Products

schneider-electric
commercial·FRaka schneider electric se
modicon tsxety4103 firmware
ICS / OT / IoT
modicon tsxety5103 firmware
ICS / OT / IoT
modicon tsxp574634 firmware
ICS / OT / IoT
modicon tsxp575634 firmware
ICS / OT / IoT
modicon tsxp576634 firmware
ICS / OT / IoT
modicon quantum 140noe77101 firmware
ICS / OT / IoT
modicon quantum 140noe77111 firmware
ICS / OT / IoT
modicon quantum 140noc78100 firmware
ICS / OT / IoT
Schneider Electric
commercial·FRaka schneider-electric
140NOE771x1
ICS / OT / IoT
140NOC78x00
ICS / OT / IoT
140NOC77101
ICS / OT / IoT
Modicon M340 Ethernet TCP/IP network module BMXNOC0401
ICS / OT / IoT
Modicon M340 CPU BMXP34
ICS / OT / IoT
Modicon M340 Ethernet Communication modules BMXNOE0100 (H)
ICS / OT / IoT
Modicon M340 Ethernet Communication modules BMXNOE0110 (H)
ICS / OT / IoT
Modicon Quantum processors with integrated Ethernet COPRO 140CPU65xxxxx
ICS / OT / IoT
Fortinet Inc.
commercial·USaka fortinet
FortiGate IPS
Security Products
and 17 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-7564?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.se.com/ww/en/download/document/SEVD-2020-315-01/
se.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-005-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-21-005-01
cisa.gov
and 10 more references View all →

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