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Notice on Ripple20 Treck TCP/IP Stack Potential Vulnerabilities

Ricoh is aware of the security vulnerabilities known as the “Ripple20” disclosed by the JSOF on June 16, 2020. These vulnerabilities could potentially allow a remote hacker to trigger an information leak if a specific TCP/IP stack version is used.

We have confirmed that Ricoh A3-sized multi-function printers, production printers, digital duplicators, Interactive White Boards, projectors, and Unified Communication Systems do not use IP stack modules from Treck Inc. and Kasago of Zuken Elmic, Inc. A small number of printers and A4-sized multi-function printers are still under investigation.

The security and integrity of our customers' data and devices remain of utmost importance to Ricoh and will publish an advisory for the affected model. As more information becomes available, we will update this web page.

For further details on best practices for securely setting up your printer or MFP, please visit here.

|About Ricoh|

Ricoh is empowering digital workplaces using innovative technologies and services enabling individuals to work smarter. For more than 80 years, Ricoh has been driving innovation and is a leading provider of document management solutions, IT services, commercial and industrial printing, digital cameras, and industrial systems. Headquartered in Tokyo, Ricoh Group operates in approximately 200 countries and regions. In the financial year ended March 2017, Ricoh Group had worldwide sales of 2,028 billion yen (approx. 18.2 billion USD).

For further press information, please contact:
Simone John, Ricoh SA
Contact details: (011) 723-5000,

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