Summary
Multiple Endress+Hauser devices are prone to vulnerabilities found in e!Runtime and the CODESYS V3 framework.
Impact
An external attacker could exploit the vulnerabilities to cause denial-of-service, overwrite memory, or execute arbitrary code.
Affected Product(s)
| Model no. | Product name | Affected versions |
|---|---|---|
| 751-9301 | CC 100 (751-9301) | Firmware FW 25, Firmware <=FW 25 |
| CDC 90 | Firmware V3.5.18.0 , Firmware <=V3.5.18.0 | |
| 750-82?? | PFC 200 (750-82xx/xxx-xxx) | Firmware <=FW 25, Firmware FW 25 |
Vulnerabilities
Expand / Collapse allAn authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpAppForce Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated remote attacker may use a stack based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated remote attacker may use a stack based out-of-bounds write vulnerability in multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated remote attacker may use a stack based out-of-bounds write vulnerability in multiple CODESYS products in multiple versions to write data into the stack which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
An authenticated, remote attacker may use a out-of-bounds write vulnerability in multiple CODESYS products in multiple versions to write data into memory which can lead to a denial-of-service condition, memory overwriting, or remote code execution.
In multiple CODESYS products in multiple versions an unauthorized, remote attacker may use a improper input validation vulnerability to read from invalid addresses leading to a denial of service.
An authenticated, remote attacker may use a Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple versions of multiple CODESYS products to force a denial-of-service situation.
An authenticated, remote attacker may use a improper input validation vulnerability in the CmpApp/CmpAppBP/CmpAppForce Components of multiple CODESYS products in multiple versions to read from an invalid address which can lead to a denial-of-service condition.
Multiple CODESYS products in multiple versions are prone to a improper input validation vulnerability. An authenticated remote attacker may craft specific requests that use the vulnerability leading to a denial-of-service condition.
Mitigation
The CDC 90 device is not designed for network connectivity by default. Since it is not connected to a network, the vulnerabilities cannot be exploited. However, if the customer chooses to connect the device to a network, the default firewall settings should be maintained, as this will mitigate the security vulnerabilities.
For the CC 100 and PFC 200 devices, ensure that the default firewall settings remain intact and that both PLC Runtime and PLC WebVisu are disabled. This configuration effectively mitigates the identified security vulnerabilities.
Remediation
Although the CDC 90 device is typically not connected to a network, making exploitation of the vulnerabilities unlikely, Endress+Hauser has provided an update to eliminate the vulnerabilities should the device be connected.
For the CC 100 and PFC 200 devices, Endress+Hauser provides updated firmware that incorporates WAGO's security fixes for the identified vulnerabilities. Customers are advised to update to the latest version
For support, please contact your local service center.
| Product | Fixed Version |
|---|---|
| CC 100 (751-9301) | FW 28 |
| PFC 200 (750-82xx/xxx-xxx) | FW 28 |
| CDC 90 | V3.5.19.0 |
Acknowledgments
Endress+Hauser AG thanks the following parties for their efforts:
- CERT@VDE for coordination (see https://certvde.com )
Revision History
| Version | Date | Summary |
|---|---|---|
| 1.0.0 | 31.03.2026 10:00 | Initial version |