PIXMA MP558

September 2025

Vulnerabilities Mitigation for Printer Drivers (Production, Office Multifunction and Laser Printers)

Thank you for your continued trust in Canon products. We have detected multiple vulnerabilities in selected printer drivers for production, office multifunction and laser printers.

Vulnerability Mitigation Against SMTP/LDAP Passback for Laser Printers and Small Office Multifunction Printers

Thank you for your continued trust in Canon products. We have identified a Passback vulnerability in certain Office / Small Office Multifunction Printers and Laser Printers. If malicious actors gain administrative rights, they can obtain authentication information for SMTP / LDAP connections found on the products.

Vulnerability Remedy for Printer Drivers for Production/Office/Small Office Multifunction Printers and Laser Printers

Thank you for your continued trust in Canon products. We have identified a buffer overflow vulnerability (CVE-2025-1268) in certain Canon Generic Plus Drivers. Under certain conditions, it is possible for malicious code to be executed. For prudence, we strongly recommend updating your printer driver ...

uniFLOW Online Security Advisory

uniFLOW Online Device Registration Susceptible To Compromise A potential susceptibility to compromise in device registration has been identified in uniFLOW Online. Whilst we have not received any reports of exploitation, we recommend that you read the security advisory link. Details of the vulnerability, ...

Regarding Vulnerability Measure against Buffer Overflow for Laser Printers and Small Office Multifunction Printers

Thank you for using Canon Products. Multiple cases of buffer overflow vulnerabilities have been found for Canon Laser Printers and Small Office Multifunction Printers. These vulnerabilities indicate the possibility that if a product is connected directly to the Internet without using a router (wired ...

Regarding Measure against RSA Key Generation Vulnerability for Enterprise/Small Office Multifunction Printers and Laser Printers/Inkjet Printers

Thank you for using Canon products. A vulnerability affecting Cryptographic library’s RSA Key generation in Canon’s Enterprise/Small Office Multifunction Printers and Laser Printers/Inkjet Printers has been confirmed. (CVE-2022-26320） This vulnerability may allow efficient calculation of private RSA ...

To Users of Canon's Multifunctional Printers / Laser Printers / Inkjet Printers

Thank you for using Canon products. A recent announcement by Google on “Less secure apps & your Google Account” has come to our attention. According to the announcement, Google will no longer support the use of third-party apps or devices which require a user to sign-in to Google Account using only ...

Regarding the Security Advisory for Canon Laser Printer and Small Office Multifunctional Printer Related to IP Stack Protocol

Thank you for using Canon Products. SCADAfence Ltd, a cybersecurity company headquartered in Israel, has drawn to our attention the vulnerabilities related to the IP stack protocol, which is used by Canon Laser Printer and Small office Multifunctional Printer. (CVE-2020-16849) Due to these ...

Regarding the Results of Our Investigation Into Vulnerabilities in Products Equipped with Fax Functions

Recently, researchers reported on vulnerabilities found in the communication protocols in the fax functions of certain products. (CVE-ID: CVE-2018-5924, CVE 2018-5925). Please refer here for details of the impact of these vulnerabilities on Canon products equipped with fax functions.

How to protect against WPA2 vulnerability (KRACKs) - Inkjet printers, inkjet multi-function printers with Wi-Fi feature

Thank you for using Canon products.With the recent disclosure of WPA2 Vulnerability (KRACKs), we would like to provide information on proper safeguards to mitigate risks associated with this vulnerability when using Canon products.Supplementary Information on KRACKs: A vulnerability known as KRACKs in ...

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