ABB became aware of severe vulnerability in the products versions listed as affected in the advisory. An update is available that resolves these vulnerabilities.

An attacker who successfully exploited these vulnerabilities could bypass the user management and read visualization files (CVE-2025-2595), read and write certificates and keys (CVE-2025-41659) or cause a denial-of-service (DoS) (CVE-2025-41691).

An unauthenticated attacker can read static visualization files of the CODESYS WebVisu, by bypassing the CODESYS Visualization user management applying forced browsing.

An unauthenticated remote attacker can bypass the user management in CODESYS Visualization and read visualization template files or static elements by means of forced browsing.

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.

An unauthenticated remote attacker can bypass the user management in CODESYS Visualization and read visualization template files or static elements by means of forced browsing.

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.

Several WAGO firmwares installed on different devices are impacted by various CODESYS vulnerabilities. These affect the runtime, visualization, and OPC UA server.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in CODESYS ausnutzen, um Informationen offenzulegen.