Published:2025/08/29  Last Updated:2025/08/29

JVNVU#99831542
Denial-of-service (DoS) vulnerability in Konica Minolta bizhub series

Overview

A vulnerability that could allow a Denial-of-Service (DoS) is reported in the Konica Minolta bizhub series.

Products Affected

A wide range of products and versions are affected.
For more information, refer to "Vendor Status" section below.

Description

Konica Minolta bizhub series provided by Konica Minolta, Inc. contains the following vulnerability.

  • Uncaught exception (CWE-248)
    • CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N Base Score 5.3
    • CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Base Score 4.3
    • CVE-2025-54777

Impact

If a malformed file is imported as an S/MIME Email certificate, it may cause a denial-of-service issue that disable the Web Connection feature.

Solution

Update the Firmware
According to Konica Minolta, the fixed firmware will be deployed incrementally. Devices will receive the update either via remote delivery or through on-site service by an authorized representative.

Apply the workarounds
Konica Minolta also recommends applying a workaround.
For more information, refer to "Vendor Status" section below.

Vendor Status

Vendor Status Last Update Vendor Notes
Konica Minolta, Inc. Vulnerable 2025/08/29 Konica Minolta, Inc. website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Konica Minolta, Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2025-54777
JVN iPedia