CVE-2021-43471: Canon LBP223DW Firmware

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

In Canon LBP223 printers, the System Manager Mode login does not require an account password or PIN. An attacker can remotely shut down the device after entering the background, creating a denial of service vulnerability.

Affected products

• Canon LBP223DW Firmware: affected versions not specified

Published 2021-12-06. Last modified 2026-06-17.