|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/Inkjet Printers and Small Office Multifunctional Printers listed under Affected models 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. In addition, there is the potential for arbitrary files to be installed by a third party due to improper authentication of the Remote User Interface (printer web portal).
Problems During Initial Registration of System Administrators in Control Protocols
Improper authentication of the printer’s web portal
Installation of arbitrary files
imageCLASS MF Series
• Color imageCLASS X MF1127C
• Color imageCLASS X C1127i
• Color imageCLASS MF644Cdw
• Color imageCLASS MF645Cx
• Color imageCLASS MF746Cdw
• Color imageCLASS MF746Cx
imageCLASS LBP Series
• Color imageCLASS X LBP1127C
• Color imageCLASS X C1127P
• Color imageCLASS LBP622Cdw
• Color imageCLASS LBP623Cdw
• 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 https://www.cla.canon.com/cla/en/support or click on the Affected model link above to navigate to the latest firmware. Once here, select Firmware and download and install the latest version.
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 “Regarding security for products connected to a network” in the URL below for other security measures that can be used with your Canon products.
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.