ZDI 2026-03-16

ZDI-26-206: (Pwn2Own) Canon imageCLASS MF654Cdw TTF Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

CVE-2025-14235

Machine-generated analysis · WAYSCloud LLM

The vulnerability requires no authentication and allows network-adjacent attackers to execute arbitrary code via a TTF parsing flaw.

Context

The Canon imageCLASS MF654Cdw printer is affected by an out-of-bounds write vulnerability in its TTF parsing functionality. The vulnerability permits remote code execution without authentication from a network-adjacent position. The ZDI assigned a CVSS score of 8.8.

Operator considerations

Check: Inventory network-adjacent Canon imageCLASS MF654Cdw printers.
Isolate: Restrict network access to affected printers until patched.

From Zero Day Initiative ↗

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.

Read the full advisory on ZDI →