Advisory Details

March 16th, 2026

(Pwn2Own) Canon imageCLASS MF654Cdw TTF Parsing Integer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2025-14237
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 parsing of TrueType fonts. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a 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 Neodyme (@Neodyme)

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