Potential Buffer Overflow Vulnerabilities in Laser Printers and Small Office Multifunctional Printers
Updated
03 Mar 2026
Potential Buffer Overflow Vulnerabilities in Laser Printers and Small Office Multifunctional Printers
Thank you for your continued trust in Canon products. We have identified potential multiple buffer overflow vulnerabilities in the Canon Laser Printers and Small Office Multifunctional Printers here: Affected Models.
If the product connects directly to the Internet without using a wired or Wi-Fi router, a third party could potentially execute arbitrary code, or subject the product to a Denial-of-Service (DoS) attack.
Below are the CVE numbers associated with the potential Buffer Overflow issue:
| CVE-2025-14231 | CVE-2025-14235 |
| CVE-2025-14232 | CVE-2025-14236 |
| CVE-2025-14233 | CVE-2025-14237 |
| CVE-2025-14234 |
Mitigation/Remediation:
- It is recommended for customers to set a private IP address for the products and create a network environment with a firewall or wired/Wi-Fi router that restricts network access. Visit here to find out how to secure products while connecting to a network.
- Customers are advised to install the latest firmware available at our support site.
- Firmware for multifunctional devices (copiers) is not available online. Please contact your local Canon service representative for assistance.
First Posted on 19 Feb 2026
Affected Models
| Models | Notes | Added |
| imageFORCE C1333 | Contact local Canon service representative for firmware update | 6-Feb-26 |
| imageFORCE C1333P | Contact local Canon service representative for firmware update | 6-Feb-26 |
| imageFORCE 1440 | Contact local Canon service representative for firmware update | 6-Feb-26 |
| imageFORCE 1440P | Contact local Canon service representative for firmware update | 6-Feb-26 |
| imageCLASS LBP243dw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP246dw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP248x II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP646Cdw | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP647Cdw | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP673Cdw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS LBP674Cx II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF461dw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF465dw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF469x II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF662Cdw | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF664Cdw | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF667Cx | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF752Cdw II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF756Cx II | Support - Canon South & Southeast Asia | 6-Feb-26 |
| imageCLASS MF269dw II | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF266dn II | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF264dw II | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS LBP122dw | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS LBP121dn | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF275dw | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF274dn | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF272dw | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF271dn | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS LBP172dw | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS LBP171dn | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF289dw | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF286dn | Support - Canon South & Southeast Asia | 19-Feb-26 |
| imageCLASS MF284dw | Support - Canon South & Southeast Asia | 19-Feb-26 |