CVE-2025-2146: Canon I-Sensys LBP233DW Firmware

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Buffer overflow in WebService Authentication processing of Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code. *: Satera MF656Cdw/Satera MF654Cdw/Satera MF551dw/Satera MF457dw firmware v05.07 and earlier sold in Japan. Color imageCLASS MF656Cdw/Color imageCLASS MF654Cdw/Color imageCLASS MF653Cdw/Color imageCLASS MF652Cdw/Color imageCLASS LBP633Cdw/Color imageCLASS LBP632Cdw/imageCLASS MF455dw/imageCLASS MF453dw/imageCLASS MF452dw/imageCLASS MF451dw/imageCLASS LBP237dw/imageCLASS LBP236dw/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II/imageCLASS X LBP1238 II firmware v05.07 and earlier sold in US. i-SENSYS MF657Cdw/i-SENSYS MF655Cdw/i-SENSYS MF651Cdw/i-SENSYS LBP633Cdw/i-SENSYS LBP631Cdw/i-SENSYS MF553dw/i-SENSYS MF552dw/i-SENSYS MF455dw/i-SENSYS MF453dw/i-SENSYS LBP236dw/i-SENSYS LBP233dw/imageRUNNER 1643iF II/imageRUNNER 1643i II/i-SENSYS X 1238iF II/i-SENSYS X 1238i II/i-SENSYS X 1238P II/i-SENSYS X 1238Pr II firmware v05.07 and earlier sold in Europe.

Affected products

• Canon I-Sensys LBP233DW Firmware: up to and including 05.07
• Canon I-Sensys LBP236DW Firmware: up to and including 05.07
• Canon I-Sensys LBP631CDW Firmware: up to and including 05.07
• Canon I-Sensys LBP633CDW Firmware: up to and including 05.07
• Canon I-Sensys MF453DW Firmware: up to and including 05.07
• Canon I-Sensys MF455DW Firmware: up to and including 05.07
• Canon I-Sensys MF552DW Firmware: up to and including 05.07
• Canon I-Sensys MF553DW Firmware: up to and including 05.07
• Canon I-Sensys MF651CDW Firmware: up to and including 05.07
• Canon I-Sensys MF655CDW Firmware: up to and including 05.07
• Canon I-Sensys MF657CDW Firmware: up to and including 05.07
• Canon I-Sensys X 1238i Ii Firmware: up to and including 05.07
• Canon I-Sensys X 1238if Ii Firmware: up to and including 05.07
• Canon I-Sensys X 1238p Ii Firmware: up to and including 05.07
• Canon I-Sensys X 1238pr Ii Firmware: up to and including 05.07
• Canon Imageclass LBP236DW Firmware: up to and including 05.07
• Canon Imageclass LBP237DW Firmware: up to and including 05.07
• Canon Imageclass LBP632CDW Firmware: up to and including 05.07
• Canon Imageclass LBP633CDW Firmware: up to and including 05.07
• Canon Imageclass MF451DW Firmware: up to and including 05.07
• Canon Imageclass MF452DW Firmware: up to and including 05.07
• Canon Imageclass MF453DW Firmware: up to and including 05.07
• Canon Imageclass MF455DW Firmware: up to and including 05.07
• Canon Imageclass MF652CDW Firmware: up to and including 05.07
• Canon Imageclass MF653CDW Firmware: up to and including 05.07
• and 12 more

Published 2025-05-26. Last modified 2026-06-17.