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CVE-2022-47387

CODESYS: Multiple products prone to stack based out-of-bounds write

Published: May 15, 2023Updated: Jul 17, 2025 Sources: CVE List NVD BDU csafCWE-787
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.3%
Top 32.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Starting with Festo Automation Suite (FAS) version 2.8.0.138, the suite is delivered only with a connector to Codesys, rather than including Codesys directly. Prior to this version, Codesys was bundled within the FAS installation. From version 2.8.0.138 onwards, customers are required to download and install Codesys independently. This change impacts the handling of security vulnerabilities (CVEs) related to Codesys. Any Codesys-related security issues must now be addressed by the customer through their separate Codesys installation. The FAS itself includes only the connector component, which is maintained and updated within the suite. Please ensure that Codesys is kept up to date independently to mitigate any potential security risks associated with the Codesys software.

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-787

Affected Products

Modicon M241Schneider ElectricICS / OT / IoT
Modicon M251Schneider ElectricICS / OT / IoT
Modicon M258Schneider ElectricICS / OT / IoT
Modicon LMC058Schneider ElectricICS / OT / IoT
Modicon LMC078Schneider ElectricICS / OT / IoT
schneider electriccommercialFRICS / OT / IoTaka schneider-electric
and 58 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://festo.csaf-tp.certvde.com/.well-known/csaf/white/2026/fsa-202601.json
festo.csaf-tp.certvde.com
https://certvde.com/en/advisories/vendor/festo/
certvde.com
https://www.festo.com/psirt
festo.com
and 229 more references View all →

Timeline

Published
May 15, 2023
Last Updated
Jul 17, 2025

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