Published:2026/01/16  Last Updated:2026/01/16

JVNVU#99107852
Multiple vulnerabilities in Canon Small Office Multifunction Printers and Laser Printers

Overview

Small Office Multifunction Printers and Laser Printers provided by Canon Inc. contain multiple vulnerabilities.

Products Affected

A wide range of products and versions are affected.
For more information, refer to "Vendor Status" section below.

Description

Small Office Multifunction Printers and Laser Printers provided by Canon Inc. contain multiple vulnerabilities listed below.

  • Out-of-bounds write (CWE-787)
    • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 9.3
    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score 9.8
    • CVE-2025-14231, CVE-2025-14232, CVE-2025-14234, CVE-2025-14235, CVE-2025-14236, CVE-2025-14237
  • Release of invalid pointer or reference (CWE-763)
    • CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 9.3
    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score 9.8
    • CVE-2025-14233

Impact

A remote attacker may execute arbitrary code and/or cause a denial-of-service (DoS) condition.

Solution

Update the firmware
Update the firmware to the latest version according to the information provided by the developer.

Apply the Workaround
Apply the following workarounds to prevent access from untrusted entities.

  • Use the product within a network protected by a firewall
  • Use the product with a private IP address

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Canon Inc. reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE
JVN iPedia