Published:2026/05/11 Last Updated:2026/05/11
JVNVU#90878203
Canon Production Printers and Office Multifunction Printers vulnerable to information disclosure
Overview
Canon Production Printers and Office Multifunction Printers contain an information disclosure vulnerability.
Products Affected
For details on the affected products and versions, refer to the vendor's advisory.
Description
Canon Production Printers and Office Multifunction Printers contain the following vulnerability.
- Reliance on untrusted inputs in a security decision (CWE-807)
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Base Score 6.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Base Score 4.9 - CVE-2026-1789
- CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Base Score 6.9
Impact
If an attacker with administrative privileges sends a specially crafted request, sensitive information within the product may be obtained.
Solution
Update the firmware
Update the firmware to the latest version according to the information provided by the developer.
Apply the Workaround
Apply the following workarounds to prevent access from untrusted entities:
- Use the product within a network protected by a firewall.
- Configure the product to use a private IP address.
Vendor Status
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Credit
Canon Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.