Service Notice: Vulnerabilities Remediation Against Buffer Overflow for Canon Laser Printer/Inkjet Printer and Small Office Multifunctional Printers
Updated: 05.16.23
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).:
Buffer Overflow
CVE-2023-0851 CVE-2023-0855
CVE-2023-0852 CVE-2023-0856
CVE-2023-0853 CVE-2022-43974
CVE-2023-0854 CVE-2022-43608
Problems During Initial Registration of System Administrators in Control Protocols
CVE-2023-0857
Improper authentication of the printer’s web portal
CVE-2023-0858
Installation of arbitrary files
CVE-2023-0859
Affected models:
imageCLASS MF Series
MF1127C
MF262DW II/MF264DW II/MF267DW II/MF269DW II/MF269DW VP II
MF272DW/MF273DW/MF275DW
MF641CW/MF642CDW/MF644CDW
MF741CDW/MF743CDW/MF745CDW/MF746CDW
imageCLASS LBP Series
LBP122DW
LBP1127C
LBP622CDW/LBP623CDW
LBP664CDW
imagePROGRAF Series
TC-20*/TC-20M
PIXMA Series
G3270*/G4270*
MAXIFY Series
GX3020*/GX4020*
Note: If we determine that additional products could potentially be impacted by this matter, we will issue an updated Service Notice.
Firmware download:
Please proceed to https://www.usa.canon.com/support or click on the Affected model links above to navigate to the latest firmware. Once here, change the Type filter to Firmware, then download and install the latest version.
* For these models, the updated firmware will not be available on the Canon website; however it is recommended to use the Firmware Update feature on your device while connected to the network to update to 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.
https://global.canon/en/support/security/prd-secu.html
Thank you,
Customer Support
Canon U.S.A., Inc.
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