Advisory Details

March 16th, 2026

(Pwn2Own) Canon imageCLASS MF654Cdw PJCC Request Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-26-205
ZDI-CAN-28334

CVE ID CVE-2025-14234
CVSS SCORE 8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Canon
AFFECTED PRODUCTS imageCLASS MF654Cdw
VULNERABILITY DETAILS

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 specific flaw exists within the CADM service, which listens on TCP port 9013 by default. A crafted font in a PJCC request can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
ADDITIONAL DETAILS Canon has issued an update to correct this vulnerability. More details can be found at:
https://www.canon-europe.com/support/product-security/
DISCLOSURE TIMELINE
  • 2025-11-11 - Vulnerability reported to vendor
  • 2026-03-16 - Coordinated public release of advisory
  • 2026-03-16 - Advisory Updated
CREDIT Team ANHTUD
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