CVE-2023-37551

CODESYS Files or Directories Accessible to External Parties in CmpApp

MEDIUM
6.5
CVSS Score
Published: August 3, 2023 at 11:03 AM UTC
Updated: June 17, 2026 at 06:08 AM UTC
19 products affected across 1 vendorControl for emPC-A/iMX6 SLControl for BeagleBone SLControl for PFC100 SL

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

In multiple Codesys products in multiple versions, after successful authentication as a user, specially crafted network communication requests can utilize the CmpApp component to download files with any file extensions to the controller. In contrast to the regular file download via CmpFileTransfer, no filtering of certain file types is performed here. As a result, the integrity of the CODESYS control runtime system may be compromised by the files loaded onto the controller.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 4.10.0.0v < V4.10.0.0
Affected range stops below 4.10.0.0, so it looks safe — our inference, not a vendor statement
Affected range stops below V4.10.0.0, so it looks safe — our inference, not a vendor statement
v < 3.5.19.20v < V3.5.19.20
Affected range stops below 3.5.19.20, so it looks safe — our inference, not a vendor statement
Affected range stops below V3.5.19.20, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCERTVDE
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-552

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