Product Advisories

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Service Notice: Canon Laser Printer and Small Office Multifunctional Printer measure against buffer overflow

Thank you for using Canon products.

Canon U.S.A., Inc. has recently become aware of potential multiple buffer overflow vulnerabilities in the Canon Laser Printers and Small Office Multifunctional Printers listed below. If the product is connected directly to the internet without using a wired or Wi-Fi router, a third party could potentially execute arbitrary code or the product could be subjected to a Denial-of-Service (DoS) attack. (CVE-2022-24672, CVE-2022-24673, CVE-2022-24674)

Affected Products

imageCLASS MF Series
Color imageCLASS X MF1127C
Color imageCLASS X C1127i
imageCLASS X MF1238
imageCLASS X 1238i
imageCLASS MF445dw
imageCLASS MF449dw
imageCLASS MF449x
Color imageCLASS MF634Cdw
Color imageCLASS MF635Cx
Color imageCLASS MF644Cdw
Color imageCLASS MF645Cx
Color imageCLASS MF735Cdw
Color imageCLASS MF735Cx
Color imageCLASS MF746Cdw
Color imageCLASS MF746Cx

imageCLASS LBP Series
Color imageCLASS X LBP1127C
Color imageCLASS X C1127P
imageCLASS X LBP1238
imageCLASS X 1238P
imageCLASS LBP226dw
imageCLASS LBP228dw
imageCLASS LBP228x
Color imageCLASS LBP612Cdw
Color imageCLASS LBP613Cdw
Color imageCLASS LBP622Cdw
Color imageCLASS LBP623Cdw
Color imageCLASS LBP654Cdw
Color imageCLASS LBP654Cx
Color imageCLASS LBP664Cdw
Color imageCLASS LBP664Cx

Note: If we determine that additional products could potentially be impacted by this matter, we will issue an updated Service Notice.

Please click your product from the list above or proceed to to download the latest firmware.

Furthermore, if you have not done so already, we recommend that you set up a private IP address for products and create a network environment with a firewall or Wi-Fi router that can restrict network access.

In addition, please check “Securing products when connecting to a network” in the URL below for other security measures that can be used with your Canon products.

Contact Information
Should you have any questions about the announcement, please contact the Authorized Service Facility in your area or you may contact the Call Center within your region.