CVE-2018-12049: Canon LBP6030W Firmware

Critical severity, CVSS 9.8. EPSS: 5.1% chance of exploitation in the next 30 days.

A remote attacker can bypass the System Manager Mode on the Canon LBP6030w web interface without a PIN for /checkLogin.cgi via vectors involving /portal_top.html to get full access to the device. NOTE: the vendor reportedly responded that this issue occurs when a customer keeps the default settings without using the countermeasures and best practices shown in the documentation

Affected products

• Canon LBP6030W Firmware: affected versions not specified

Published 2018-06-08. Last modified 2026-06-17.