Thank you for using our products.

A vulnerability has been identified in the Windows application of some of our multi-function peripherals. This issue does not result in the leakage of information from the product to outside parties.

Vulnerability details

Target Products

e-STUDIO 300D/ 301DN/ 302DNF (These products have been sold only in the Chinese market.)

Vulnerability Reference

CVE-2025-49797 (JVNVU#91819309) Privilege escalation vulnerability

Details

If you install the software, or if the software requires administrative privileges, and the files you use are replaced by malicious programs, you may lose your administrative privileges.

Solution

Ask your service company to update the main unit software.

Workaround

If you are using a product for which the software is not yet available, please use the workaround methods below.

1. Make sure you use the printer in a firewall-protected network environment in the office.
2. It is also effective to prevent malicious programs such as malware from being executed by security software.

Acknowledgements

We would like to thank Julian Horoszkiewicz of Eviden, Poland, for reporting this vulnerability