ZDI-CAN-28349: ZDI-26-206: (Pwn2Own) Canon imageCLASS MF654Cdw TTF Parsing Out-Of-Bounds Write 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-2025-14235.

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-28349?

The severity of ZDI-CAN-28349 is critical due to its potential for remote code execution.

How do I fix ZDI-CAN-28349?

To fix ZDI-CAN-28349, update the firmware of the Canon imageCLASS MF654Cdw printer to the latest version released by Canon.

What type of vulnerability is ZDI-CAN-28349?

ZDI-CAN-28349 is a remote code execution vulnerability caused by an out-of-bounds write in TTF parsing.

Who is affected by ZDI-CAN-28349?

Affected users include anyone using the Canon imageCLASS MF654Cdw printer connected to a network.

Is authentication required to exploit ZDI-CAN-28349?

No, authentication is not required to exploit ZDI-CAN-28349, making it particularly dangerous.

Company

Resources

Contact

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