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Pass-Back Attack Vulnerability in DEVELOP Multifunction Printers

  • Pass-Back Attack Vulnerability in DEVELOP Multifunction Printers

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Pass-Back Attack Vulnerability in DEVELOP Multifunction Printers

Dear Customers,

We deeply appreciate your constant patronage to DEVELOP products.

A Pass-Back Attack vulnerability has been newly identified in the indicated models.

This advisory provides an overview of the issue and the recommended countermeasures.

Please note that, at the time of publication (June 30th, 2025), there have been no confirmed security incidents globally resulting from the exploitation of this vulnerability.

Overview of the vulnerabilities

Ref. ID

CVSSv3.1 (Rapid7)

Base Score

Vulnerability description

CVE-2025-6081

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

6.8

An authenticated attacker can

disclose the password of a

configured external service.

Affected Models and the countermeasure firmware

Product name

Affected version

ineo+ 751i

ineo+ 651i/+551i/+451i

ineo+ 361i/+301i/+251i

ineo+ 4051i/+3351i/+4001i/+3301i

ineo+ 3321i

ineo 751i

ineo 651i/551i/451i

ineo 361i/301i

ineo 4751i/4051i

ineo 4701i

ineo+ 750i

ineo+ 650i/+550i/+450i

ineo+ 360i/+300i/+250i

ineo+ 287i/+257i/+227i

ineo+ 4050i/+3350i/+4000i/+3300i

ineo+ 3320i

ineo 950i/850i

ineo 750i

ineo 650i/550i/450i

ineo 360i/300i

ineo 306i/266i/246i/226i

ineo 4750i/4050i

ineo 4700i

All versions

ineo+ 759/+659

ineo+ 658/+558/+458

ineo+ 368/+308/+258

ineo+ 287/+227

ineo+ 3851/+3851FS/+3351

ineo 958/808/758

ineo 658e/558e/458e

ineo 368e/308e

ineo 558/458/368/308

ineo 367/287/227

ineo 4752/4052

All versions

Impact on Multifunction Printers

There is a possibility that authentication credentials configured for external services—such as LDAP, SMTP, FTP, SMB, or WebDAV—may be exposed by means of a malicious server connection.

Vulnerability Specific Recommendation

  1. Ensure that the administrator password is secure. If it remains set to its factory default, please change it immediately to a strong complex password.
  2. Restrict non-Admin users from making any address book destination changes.
  3. When utilizing any external service, avoid registering accounts with elevated privileges—such as those used in systems like Active Directory—on the multifunction printers.

General Security Recommendations

To ensure a secure operating posture for your multifunction devices, and to reduce exposure to the vulnerabilities described in this advisory, DEVELOP strongly recommends applying the following configuration best practices:

For comprehensive information on secure configuration, please refer to our Product Security web site.

More information

Enhancing the Security of Products and Services

Konica Minolta considers the security of its products and services to be an important responsibility and will continue to actively respond to incidents and vulnerabilities.

More information

Acknowledgements

We would like to express our sincere appreciation to Mr. Deral Heiland of Rapid7 and security researcher Mr. Vladislav Volozhenko for discovering and responsibly reporting this vulnerability.

Contact

Should you require further clarification or assistance with implementing the recommended measures or applying the relevant firmware update, please contact your authorized DEVELOP service representative.