CVE-2023-6232: Canon I-Sensys LBP673CDW Firmware

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

Buffer overflow in the Address Book username process in authentication of Mobile Device Function of 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 LBP670C Series/Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS LBP674C/Color imageCLASS X LBP1333C/Color imageCLASS MF750C Series/Color imageCLASS X MF1333C Series firmware v03.07 and earlier sold in US. i-SENSYS LBP673Cdw/C1333P/i-SENSYS MF750C Series/C1333i Series firmware v03.07 and earlier sold in Europe.

Affected products

  • Canon I-Sensys LBP673CDW Firmware: up to and including 03.07
  • Canon I-Sensys MF752CDW Firmware: up to and including 03.07
  • Canon I-Sensys MF754CDW Firmware: up to and including 03.07
  • Canon I-Sensys X c1333i Firmware: up to and including 03.07
  • Canon I-Sensys X c1333if Firmware: up to and including 03.07
  • Canon I-Sensys X c1333p Firmware: up to and including 03.07
  • Canon LBP122DW Firmware: up to and including 03.07
  • Canon LBP1238 Ii Firmware: up to and including 03.07
  • Canon LBP1333C Firmware: up to and including 03.07
  • Canon LBP236DW Firmware: up to and including 03.07
  • Canon LBP237DW Firmware: up to and including 03.07
  • Canon LBP671C Firmware: up to and including 03.07
  • Canon LBP672C Firmware: up to and including 03.07
  • Canon LBP674C Firmware: up to and including 03.07
  • Canon LBP674CDW Firmware: up to and including 03.07
  • Canon MF1238 Ii Firmware: up to and including 03.07
  • Canon MF1333C Firmware: up to and including 03.07
  • Canon MF1643I Ii Firmware: up to and including 03.07
  • Canon MF1643IF Ii Firmware: up to and including 03.07
  • Canon MF272DW Firmware: up to and including 03.07
  • Canon MF273DW Firmware: up to and including 03.07
  • Canon MF275DW Firmware: up to and including 03.07
  • Canon MF451DW Firmware: up to and including 03.07
  • Canon MF452DW Firmware: up to and including 03.07
  • Canon MF453DW Firmware: up to and including 03.07
  • and 4 more

Published 2024-02-06. Last modified 2026-06-17.