CVE-2026-3509: Use of Externally-Controlled Format String

An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service DoS condition...

CVE-2025-41660: Incorrect Resource Transfer Between Spheres

A low-privileged remote attacker may be able to replace the boot application of the CODESYS Control runtime system, enabling unauthorized code execution...

CVE-2025-41738: Access of Resource Using Incompatible Type

An unauthenticated remote attacker may cause the visualisation server of the CODESYS Control runtime system to access a resource with a pointer of wrong type, potentially leading to a denial-of-service DoS condition...

CVE-2025-41659: Incorrect Permission Assignment for Critical Resource

A low-privileged attacker can remotely access the PKI folder of the CODESYS Control runtime system and thus read and write certificates and its keys. This allows sensitive data to be extracted or to accept certificates as trusted. Although all services remain available, only unencrypted...

CVE-2023-37551 CODESYS Files or Directories Accessible to External Parties in CmpApp

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 CmpFileTransfe...

PT-2022-15485 · 3S Smart Software Solutions · Codesys Control Runtime System

Name of the Vulnerable Software and Affected Versions: CODESYS Control runtime system affected versions not specified Description: The issue allows any system user to read and write within restricted memory space due to a problem in the SysDrv3S driver. Recommendations: At the moment, there is no...