ZDI-CAN-28334: ZDI-26-205: (Pwn2Own) Canon imageCLASS MF654Cdw PJCC Request Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

Published Mar 16, 2026

Updated

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF654Cdw printers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2025-14234.

Affected Software

1 affected component

Canon imageCLASS MF654Cdw

Event History

Mar 16, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-28334?

ZDI-CAN-28334 is a critical vulnerability that allows remote code execution on affected Canon printers.

How do I fix ZDI-CAN-28334?

To fix ZDI-CAN-28334, update your Canon imageCLASS MF654Cdw printer firmware to the latest version provided by Canon.

What are the consequences of exploiting ZDI-CAN-28334?

Exploiting ZDI-CAN-28334 can allow an attacker to execute arbitrary code, potentially leading to a complete takeover of the printer.

Who is affected by ZDI-CAN-28334?

Users of the Canon imageCLASS MF654Cdw printer are affected by ZDI-CAN-28334.

Is authentication required to exploit ZDI-CAN-28334?

No, authentication is not required to exploit ZDI-CAN-28334, making it particularly dangerous.

Company

Resources

Contact

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